Remote terminal control system

Abstract

The invention discloses a remote terminal control system comprising a safety zone and an anti-explosion zone. A concentrating device is arranged in the safety zone, a plurality of wireless collecting front ends and flow meters that are interconnected are arranged in the anti-explosion zone. The concentrating device is used for collecting measurement data of the wireless collecting front ends beyond safety distance; the measurement data is uploaded to a remote uploading platform via a data uploading module, or the measurement data is transmitted on site to a metering system and a station control system via a local port and then processed; the wireless collecting front ends are used for collecting the measurement data of the flow meters and transmitting the measurement data to the concentrating device in a wireless manner, and the flow meters are used for detecting gas flow quantities in natural gas pipelines; when the measurement data is transmitted on site, the measurement data can be stably and accurately transmitted to the metering system and the station control system via an interface RS485 or RS45 or the like.

Description

technical field [0001] The invention relates to the field of remote collection of natural gas, in particular to a remote terminal control system. Background technique [0002] At present, my country's natural gas resources are not very rich, and the regional distribution of reserves is very uneven. In recent years, with the rapid development of the global economy and the enhancement of the awareness of global environmental protection, the demand for natural gas as the cleanest energy is increasing. It is becoming more and more urgent. In some low-permeability areas of our country, the exploitation of natural gas is also in full swing. If natural gas is exploited in these areas, high-density natural gas wells are required to obtain high natural gas production. Therefore, tens of thousands of natural gas wells are distributed in a county-level administrative region. Due to the large number of wellheads, they may be distributed in deserts. In the Gobi, the inspection is very in...

AI Technical Summary

Problems solved by technology

If natural gas is exploited in these areas, high-density natural gas wells are required to obtain high natural gas production. Therefore, tens of thousands of natural gas wells are distributed in a county-level administrative region. Due to the large number of wellheads, they may be distributed in deserts. In the Gobi, the inspection is very inconvenient, and the gas field must be managed digitally and networked. Therefore, it is necessary to have a supporting natural gas wellhead data collection and remote transmission system

In the natural gas wellhead data acquisition system in the prior art, the remote terminal control unit RTU (Remote Terminal Unit) collects wellhead oil pressure, casing pressure and natural gas flow data in the natural gas export pipeline through the analog input channel. Due to the limitation of channels, it is impossible to complete data collection for equipment above four cluster well groups. Moreover, the natural gas wellhead data collection system in the prior art still has defects and deficiencies such as high power consumption, poor safety performance, and high maintenance costs after failure.

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