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Ultra-low temperature liquid pressurized unloading device and method

An unloading device and ultra-low temperature technology, applied in container filling method, container discharge method, gas/liquid distribution and storage, etc., can solve problems such as pump cavitation, and achieve the effect of saving unloading time

Active Publication Date: 2022-07-26
陕西融科低温设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Pump pressurization and unloading due to the use of the unloading pump, the unloading speed can be increased after the unloading pump is running well, but due to the limitation of the physical properties of the ultra-low temperature liquid itself, it is easy to gasify and cause pump cavitation. The pump is fully pre-cooled

Method used

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  • Ultra-low temperature liquid pressurized unloading device and method
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  • Ultra-low temperature liquid pressurized unloading device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0119] like Figures 1 to 2 As shown, this embodiment provides an ultra-low temperature liquid pressurized gas island unloading device, including a storage tank 20 and a pressurized gas island unit, the pressurized gas island unit including a supercharger 13, a supercharger fluid inlet pipeline , the supercharger fluid outlet pipeline 15 and the tanker liquid phase interface 101 and the tanker gas phase interface 102 for connecting with the tanker 1 containing the ultra-low temperature liquid to be unloaded respectively;

[0120] The tanker liquid phase interface 101 is installed on the supercharger fluid inlet pipeline, and the end of the supercharger fluid inlet pipeline away from the tanker liquid phase interface 101 is communicated with the inlet of the supercharger 13;

[0121] The tank car gas phase interface 102 is installed on the supercharger fluid outlet pipeline 15, and the end of the supercharger fluid outlet pipeline 15 away from the tank car gas phase interface 1...

Embodiment 2

[0159] like image 3 As shown, this embodiment provides an ultra-low temperature liquid pressurized mutual backup unloading device, including a storage tank 20 and a pressurized mutual backup unit, the pressurized mutual backup unit includes a first supercharger 2213, a second pressurized 22132, first booster fluid inlet line, first booster fluid outlet line 2215, second booster fluid inlet line 22122, second booster fluid outlet line 22152, booster first line 131, The second pipeline 132 of the supercharger and the tanker liquid phase interface 101 and the tanker gas phase interface 102 respectively connected to the tanker 1 containing the ultra-low temperature liquid to be unloaded;

[0160] The tanker liquid phase interface 101 is installed on the first supercharger fluid inlet line, and the first supercharger fluid inlet line is far away from one end of the tanker liquid phase interface 101 and the inlet of the first supercharger 2213 connected;

[0161] The tanker gas p...

Embodiment 3

[0199] like Figures 1 to 2 As shown, this embodiment provides a multi-unit pressurized and mutually backup gas island unloading device, including a storage tank 20, a plurality of pressurized units and a first pipeline 131 of a supercharger arranged between the plurality of pressurized units and the booster second line 132;

[0200] Each of the booster units includes a booster gas island unit and a liquid booster unit;

[0201] Each of the supercharged gas island units includes a supercharger 13, a supercharger fluid inlet line, a supercharger fluid outlet line 15, and a tanker liquid phase for respectively connecting with the tanker 1 containing the ultra-low temperature liquid to be unloaded. The interface 101 and the gas phase interface 102 of the tanker;

[0202] Each liquid phase port 101 of the tanker is installed on the corresponding fluid inlet line of the supercharger, and one end of the supercharger fluid inlet line away from the liquid phase port 101 of the corre...

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Abstract

The invention discloses an ultra-low temperature liquid pressurized unloading device and method, and specifically discloses an ultra-low temperature liquid pressurized gas island unloading device and an unloading method, an ultra-low temperature liquid pressurized mutual unloading device, a multi-unit pressurized and mutually standby gas island unloading device and Unloading method. The ultra-low temperature liquid pressurized gas island unloading device includes a pressurized gas island unit composed of a supercharger, a supercharger fluid inlet pipeline, a supercharger fluid outlet pipeline, a tanker liquid phase interface and a tanker gas phase interface. The island unit pressurizes the unloading of the tanker, which can quickly reach the pressure required for unloading the tanker, save the unloading time, and realize energy saving and consumption reduction. It can meet the requirements of quick replacement of superchargers that need maintenance and deicing, and realize quick unloading.

Description

technical field [0001] The invention belongs to the technical field of liquefied natural gas, and particularly relates to an ultra-low temperature liquid pressurized unloading device and method. Background technique [0002] Ultra-low temperature liquids such as liquefied natural gas (LNG) are one of the important energy sources in my country's energy supply. LNG is mostly transported by tankers. At present, the main way of unloading LNG tankers is pump booster unloading or self-pressurizing unloading. [0003] The pump booster unloading truck uses an unloading pump, which can increase the unloading speed after the unloading pump runs well. However, due to the limitation of the physical properties of the ultra-low temperature liquid itself, it is easy to gasify and cause pump cavitation. Therefore, the use of pump booster unloading requires unloading. The pump is fully pre-cooled. The problem that needs to be solved in the pump booster unloading is how to make the unloading...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C7/04F17C13/00B60P3/22
CPCF17C7/04F17C13/00B60P3/2245F17C2221/033F17C2223/0161F17C2227/039F17C2227/0302
Inventor 王耀武杜利霞
Owner 陕西融科低温设备有限公司