Pipeline gas transmission and distribution process

Pipeline gas transmission and distribution process flow 1. Gate station process:
1. Since the natural gas exhibits a liquid state under high pressure, the high-pressure natural gas from the upstream is first heated by the water heater to raise the temperature of the airflow and prevent the airflow from freezing to cause sealing.
2. After heating, the natural gas enters the oil separator, thereby separating the light oil and natural gas in the gas, filtering the gas residue, and recovering the light oil.
3. The separated and filtered natural gas is metered, and then subjected to secondary dehydration, deoiling and dust removal, and then enters the pressure regulating device to adjust the high pressure natural gas to the secondary high pressure, and the secondary high pressure to the medium pressure natural gas.
4. The medium-pressure natural gas is input into the manifold, and is metered by the flow meter, and then odorized by the odor-increasing machine. After the test is added to the national industrial standard, the natural gas is transported to the municipal competent network.
Second, the municipal transmission and distribution process:
1. Before the gas pipeline is connected to each district from the municipal pipeline, a valve well is set on the branch pipe of the community to facilitate maintenance during gas shutdown.
2. Before entering the household, the gas pipeline should be converted into low-pressure natural gas through the building pressure regulating box. The air inlet of the pressure regulating box is set to quickly cut off the valve to ensure that the air can be shut off immediately in an emergency.

3. The low-pressure natural gas is metered by the household flow meter and can be ignited by the gas appliance.


(Source: Hebei Zhenxing Gas Regulator Co., Ltd. gas pressure regulator http://)
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

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