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Two-stage pressure segmentation sequential filling method for container filling by compressed natural gas station

A technology for compressing natural gas, natural gas, applied in container filling methods, equipment loaded into pressure vessels, gas/liquid distribution and storage, etc.

Inactive Publication Date: 2017-12-12
张志卓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the technical problems of natural gas energy-saving filling

Method used

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  • Two-stage pressure segmentation sequential filling method for container filling by compressed natural gas station

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Embodiment Construction

[0011] According to the picture:

[0012] The natural gas source is transported from the external network to the dehydration tank 1 of the natural gas station through the delivery pipe, and then communicated with the pressurizers 2.1 and 2.2 respectively.

[0013] 1. Filling in the first stage: start the first stage charging machine 2.1, and fill the container 3 with a lower pressure;

[0014] 2. Filling in the second stage: Start the second stage charging machine 2.2 to fill the container 3 with natural gas at high pressure until the required pressure is reached.

[0015] Features:

[0016] Using high and low pressure two-stage compressed natural gas to fill the container sequentially in stages, compared with continuous high-pressure consistent filling, it can save power consumption, reduce investment and operating costs.

[0017] The method of the invention can simultaneously fill multiple containers with compressed natural gas, thereby improving work efficiency.

[0018]...

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Abstract

The invention provides a two-stage pressure segmentation container filling method of a compressed natural gas station. A natural gas source is conveyed to the compressed natural gas station through an outer network pipeline and further communicates with a high pressuring machine and a low pressuring machine through corresponding pipelines. The first two-stage sequential filling process and the second two-stage sequential filling process are executed through the low pressuring machine and the high pressuring machine to complete the filling operation. By means of two-stage pressure segmentation sequential filling, the technical problem of energy-saving filling of compressed natural gas is solved; the characteristics of saving energy and being safe are achieved; and the two-stage pressure segmentation sequential filling method is suitable for being used as a method application for filling natural gas into a container from the compressed natural gas station.

Description

technical field [0001] The invention proposes a two-stage pressure segmental sequential filling method for a compressed natural gas station in the energy field to fill containers. Background technique [0002] Existing compressed natural gas stations usually use a single-stage high-pressure system to fill the container to about 25MPa. The disadvantages are: when the container is initially installed, the container is in a low-pressure state, and the high-pressure press is used to directly fill the low-pressure storage tank. Due to the large pressure difference, the kinetic energy is seriously wasted. Contents of the invention [0003] In order to overcome the existing shortcomings of filling natural gas containers, the present invention proposes a sequential filling method for compressed natural gas with two stages of pressure. This method is filled with natural gas in stages. Solve the technical problems of natural gas energy-saving filling. [0004] The scheme that the...

Claims

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Application Information

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IPC IPC(8): F17C5/06
CPCF17C5/06F17C2221/033F17C2227/04
Inventor 张志卓
Owner 张志卓
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