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A gas mixing and filling liquefied natural gas filling machine

A liquefied natural gas and gas mixing technology, applied in gas/liquid distribution and storage, gas processing/storage purposes, mechanical equipment, etc., can solve problems such as difficulty in gas filling, environmental pollution, waste of resources, etc. The effect of BOG emission, improving resource utilization rate and economic benefit

Active Publication Date: 2018-03-02
RIZHAO HAIDAER AERATING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the pressure of the natural gas bottle of the car is high, it will make it difficult to refuel. At this time, it is agreed to discharge the partially gasified LNG (BOG gas) in the natural gas bottle before refilling, which will not only cause a waste of resources, but also pollute the environment.

Method used

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  • A gas mixing and filling liquefied natural gas filling machine
  • A gas mixing and filling liquefied natural gas filling machine
  • A gas mixing and filling liquefied natural gas filling machine

Examples

Experimental program
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Embodiment 1

[0025] Such as figure 1 , figure 2 , a gas mixing and filling liquefied natural gas dispenser, including a liquid phase interface 1, a gas phase interface 17, a gas filling port 7, a gas return port 11, a precooling port 12, a mixer 6, a compressor 9 and a cold exchanger 8.

[0026] The liquid phase interface is connected to the cryogenic pump of the LNG storage tank, the gas phase interface is connected to the gas phase interface of the LNG storage tank, the gas filling port is connected to the air filling gun, and the gas return port is connected to the air return gun. It is connected to the air return port and the gas filling port of the car LNG bottle, and the pre-cooling port is connected to the gas filling gun when precooling the gas filling pipeline.

[0027] A mixer is a device that mixes BOG gas with liquid liquefied natural gas (LNG). The mixer is provided with a gas input port 6a, a liquid input port 6b and an output port 6c; the medium input from the gas input p...

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PUM

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Abstract

The invention relates to a gas dispenser for injecting liquefied natural gas while gas is mixed in. The gas dispenser comprises a liquid phase connector, a gas phase connector, a gas injecting port, a gas return port and a pre-cooling port. The gas dispenser for injecting liquefied natural gas while gas is mixed in is further provided with a mixer and a compressor. The gas dispenser for injecting liquefied natural gas while gas is mixed in has the beneficial effects that a BOG recovery device is composed of a cold exchanger, the compressor and the mixer, BOG exhausted out of a gas cylinder in the gas injecting process and part of BOG in the gas cylinder are turned into liquid which is added into the gas cylinder again, and therefore BOG exhaust in the gas injecting process is avoided, the utilization rate of liquefied natural gas is increased, and the resource utilization rate and economic benefits are increased.

Description

technical field [0001] The invention belongs to a liquefied natural gas filling machine, in particular to a gas mixing filling liquefied natural gas filling machine. Background technique [0002] The gas filling machine is a device that is pressurized and metered by the gas filling pump to fill the vehicle with liquefied natural gas (LNG). When the pressure of the natural gas cylinder of the automobile is low, the liquefied natural gas pressurized by the gas filling pump can be successfully filled into the natural gas cylinder of the automobile. When the pressure of the gas cylinder of the car is high, it will make it difficult to refuel. At this time, it is agreed to discharge the partially vaporized LNG (BOG gas) in the gas cylinder before refilling, which will not only cause a waste of resources, but also pollute the environment. Therefore, the improvement of this filling method has become a market demand. Contents of the invention [0003] The purpose of the present ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C5/02F17C13/02F17C13/04
CPCF17C5/02F17C13/02F17C13/04F17C2260/03
Inventor 曲来生
Owner RIZHAO HAIDAER AERATING EQUIP CO LTD