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Vaporization self-control type LNG distributed energy internet-of-things intelligent gas supply method and device

A distributed energy and gas supply device technology, which is applied in the direction of container filling method, neural learning method, container discharge method, etc., can solve the problems of low degree of automation and inability to realize vaporized self-controlled gas supply, etc., to achieve automation Control and save the effect of labor control cost

Active Publication Date: 2022-08-09
CHENGDU QINCHUAN IOT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the existing gas supply system, the control of the filling process and the vaporization process is usually controlled by manual control or manual setting of the threshold. The degree of automation is not high, and the self-controlled gas supply of vaporization cannot be realized, and further improvement is needed.

Method used

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  • Vaporization self-control type LNG distributed energy internet-of-things intelligent gas supply method and device
  • Vaporization self-control type LNG distributed energy internet-of-things intelligent gas supply method and device
  • Vaporization self-control type LNG distributed energy internet-of-things intelligent gas supply method and device

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Experimental program
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Embodiment 1

[0028] In this embodiment, as figure 1 As shown, a vaporization self-controlling LNG distributed energy IoT intelligent gas supply method includes the following steps:

[0029] S1: Data preprocessing, collecting process data and equipment parameters of historical LNG filling and vaporization operations, and standardizing them to form a data sample library;

[0030] S2: Feature extraction, extract the parameter features and control thresholds of the filling process and the vaporization process according to the data sample library, and perform manual annotation to obtain the filling and vaporization sample sets;

[0031] S3: Training the automatic control model, constructing a BP neural network model, and using the improved conjugate gradient method to train and optimize the BP neural network model to obtain an automatic control model;

[0032] S4: Gas supply automation, set the automatic control model into the central control system, and input the instructions input by the use...

Embodiment 2

[0038] In this embodiment, as figure 2 As shown in the figure, a vaporization self-controlling LNG distributed energy IoT intelligent gas supply device is designed, which is used to realize the vaporization self-controlling LNG distributed energy IoT intelligent gas supply method in the first embodiment. The device includes a central control system. , LNG external gas supply system and LNG filling system, LNG storage system, LNG vaporization system, LNG pressure regulating system, touch display and information input module interface, program download interface, gas leakage alarm, Data storage module and communication module; LNG filling system is connected with LNG storage system; LNG storage system is connected with LNG vaporization system; LNG vaporization system is connected with LNG pressure regulating system; LNG pressure regulating system is connected with LNG external gas supply system; LNG filling system The system is used to fill the external liquefied natural gas to...

Embodiment 3

[0053] In this embodiment, as image 3 As shown, on the basis of the second embodiment, the air supply device has been improved, and the specific improvements are as follows:

[0054] 1. The air outlet valve of the low temperature storage tank is changed from a manual air outlet valve to an intelligent air outlet control valve, which is electrically connected to the central control system and controlled;

[0055] 2. A small vaporization storage tank is added to the LNG vaporization system, which can store a certain amount of vaporized natural gas for stable gas supply to the outside of the device;

[0056] 3. The LNG external gas supply pipeline system includes a flow sensor, which is used to monitor the flow status of the external gas supply in real time;

[0057] 4. When the flow sensor detects that there is an external gas supply flow in the LNG external gas supply pipeline system, the intelligent gas outlet control valve and the gas outlet solenoid valve are all in the op...

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Abstract

The invention discloses a vaporization self-control type LNG distributed energy internet of things intelligent gas supply method and device, and the method comprises the steps: collecting flow data and equipment parameters of historical LNG filling and vaporization operation, and carrying out the standardization processing to form a data sample library; respectively extracting parameter characteristics and control thresholds of the filling process and the vaporization process according to the data sample library, and carrying out manual labeling to obtain a filling sample set and a vaporization sample set; constructing a BP neural network model, and training and optimizing the BP neural network model by using an improved conjugate gradient method to obtain an automatic control model; and the automatic control model is arranged in a central control system, an instruction input by a user is input into the automatic control model for flow identification, and equipment is automatically controlled to carry out filling or vaporization according to an identification result. The automation degree of intelligent gas supply of the LNG distributed energy internet of things is improved, and automatic control over LNG filling and vaporization is achieved.

Description

technical field [0001] The invention relates to the technical field of liquefied natural gas gas supply, in particular to a vaporization self-controlling LNG distributed energy Internet of Things intelligent gas supply method and device. Background technique [0002] LNG is the abbreviation of Liquefied Natural Gas (liquefied natural gas) in English. It is formed by applying ultra-low temperature refrigeration technology to pressurize, desulfurize, dehydrate and liquefy natural gas generated by oil / gas fields, and store it in ultra-low temperature cold-insulating gas tanks. The main component is methane group, and there are a small amount of B, C, butane and a very small amount of other hydrocarbon compounds. It is a clean and environmentally friendly energy source. [0003] In August 2021, the Petroleum and Natural Gas Department of the National Energy Administration and other departments announced the "China Natural Gas Development Report (2021)". The report shows that my ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C6/00F17C9/02F17C13/02F17C13/04G06N3/04G06N3/08
CPCF17C6/00F17C9/02F17C13/02F17C13/025F17C13/021F17C13/026F17C13/04G06N3/084F17C2205/0332F17C2205/0338F17C2221/033F17C2223/0161F17C2250/043F17C2250/0439F17C2250/0408F17C2250/032F17C2250/03F17C2260/02G06N3/044Y02T10/30Y02P90/02
Inventor 邵泽华李勇权亚强张磊魏小军
Owner CHENGDU QINCHUAN IOT TECH CO LTD
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