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LNG (Liquefied Natural Gas) filling station

A technology for filling stations and submersible pumps, applied in the field of LNG filling stations, can solve the problems of inability to detect and analyze submersible pumps, unable to obtain accurate and reasonable data, unable to ensure the operation status of LNG filling stations, etc. The effect of maintenance information and reliable fault reminders

Active Publication Date: 2021-03-12
ENRIC (LANGFANG) ENERGY EQUIP INTEGRATION CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current gas filling station usually only adjusts the operating status of the submersible pump based on the separate data of the outlet pressure of the LNG submersible pump.
The control system cannot detect and analyze the operating performance curve of the submersible pump, and cannot obtain accurate and reasonable data to the greatest extent, so that the submersible pump can be kept in a working state that is highly coordinated with the overall operating conditions in real time, and it is impossible to achieve Highly accurate time prediction and speculation cannot ensure the optimal operation status of LNG filling stations

Method used

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  • LNG (Liquefied Natural Gas) filling station
  • LNG (Liquefied Natural Gas) filling station
  • LNG (Liquefied Natural Gas) filling station

Examples

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Embodiment Construction

[0027] While the invention may readily be embodied in different forms, only some of these are shown in the drawings and will be described in detail in this specification, with the understanding that the specification should be considered as the These are exemplary illustrations of the principles of the invention and are not intended to limit the invention to what is described herein.

[0028] Thus, a feature indicated in this specification will be used to describe one of the features of an embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes a number of features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly described. Thus, the illustrated combinations are not intended to be limiting unless otherwise stated.

[0029] In the...

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Abstract

The invention provides an LNG (Liquefied Natural Gas) filling station. The LNG filling station comprises an LNG immersed pump, an LNG mass flow meter, a control system and a frequency converter, wherein an inlet of the LNG immersed pump is communicated with an inlet pipeline, and an outlet of the LNG immersed pump is communicated with an outlet pipeline; the LNG mass flow meter is communicated with an outlet pipeline of the LNG immersed pump; the control system is electrically connected with the LNG mass flow meter, and receives the measured value of the mass flow in the outlet pipeline measured by the LNG mass flow meter; the control system is provided with a memory which stores a standard value of the mass flow value; the control system compares and analyzes the measured value of the mass flow value with the standard value of the mass flow value in real time; the frequency converter is electrically connected with the LNG immersed pump and the control system; and the control system adjusts the working state of the LNG immersed pump through the frequency converter according to the standard value of the mass flow value. The immersed pump of the LNG filling station and the whole LNGfilling station are in a highly cooperative and efficient working state.

Description

technical field [0001] The invention relates to a gas filling station, in particular to an LNG filling station. Background technique [0002] LNG filling station is a multi-functional filling station that uses LNG as vehicle fuel. The main working process of LNG filling is to put the liquid in the LNG cryogenic storage tank into the LNG dispenser through the submersible pump and the LNG pipeline, and inject it into the vehicle-mounted gas storage cylinder of the vehicle fueled by LNG after being measured by the LNG dispenser. . [0003] The submersible pump is the core power equipment in the entire filling system, and its performance is directly related to the efficiency of the gas filling station. However, the current gas filling station usually only adjusts the operating status of the submersible pump based on the separate data of the outlet pressure of the LNG submersible pump. The control system cannot detect and analyze the operating performance curve of the submersi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C5/02F17C13/00F17C13/02
CPCF17C5/02F17C13/00F17C13/002F17C13/02F17C13/025F17C2221/033
Inventor 张丽敏宋建霖张鹏娜孙振亮王燕拜继运孙林黄凯高丽君
Owner ENRIC (LANGFANG) ENERGY EQUIP INTEGRATION CO LTD
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