What are the safety management standards for lng gasification stations?

The excellent new energy LNG monitoring system mainly realizes the functions of data acquisition, equipment monitoring, status monitoring, parameter adjustment, various signal alarms and fault inquiry, and can provide timely, accurate and reliable system operating condition data for the gas comprehensive monitoring system. LNG monitoring can realize the reasonable dispatching of natural gas, improve the management efficiency of enterprises, and make the natural gas management process of gas filling stations visual, standardized, automatic and informative. This paper mainly introduces the remote monitoring system of small gasification station in LNG industry.

I. introduction of LNG industry small-scale gasification station

the gas supply mode of LNG small-scale gasification station for industrial customers is suitable for small and medium-sized industrial users in areas without natural gas pipeline network or residential areas with natural gas pipeline network. The safe operation of gas filling station is very important, which puts forward higher requirements for the safety of gas monitoring system.

LNG gasification station has been gradually applied in many small and medium-sized cities with developed economy and energy shortage along the southeast coast of China and industrial manufacturers that need clean energy, and has become a permanent gas supply facility or a transitional gas supply facility before the arrival of pipeline natural gas.

LNG tankers or LNG container trucks transport LNG to the LNG gasification station by road, and the tank of the tanker is pressurized at the gas unloading platform through the supercharger provided by the tanker or the unloading supercharger in the station, and the LNG is unloaded to the low-temperature storage tank in the station for storage by using the pressure difference. During gasification, LNG is boosted by the self-pressurization gasifier in the storage tank, and flows into the high-efficiency air-temperature gasifier by itself. The LNG undergoes phase change and becomes gaseous natural gas. After metering, pressure regulation and deodorization, the gasified natural gas leaves the station and is transported to the gas consumption point of the factory.

2. Remote monitoring system for small gasification stations in LNG industry

1. Relevant parameters that owners of small gasification stations in LNG industry need to monitor remotely:

(1) Inlet pressure; (2) Pressure after pressure regulation; (3) temperature after pressure regulation; (4) instantaneous flow; (5) Cumulative flow; (6) combustible gas leakage alarm; (7) Tank level? .

for the above parameters that need remote monitoring,? The remote monitoring system of small gasification station in LNG industry uses communication protocol to communicate data. The data of liquid level, pressure, temperature and flow rate collected by relevant transmitters are transmitted to the server through the 2G/3G network as 4-2ma analog signals, and the server collects and processes the data received from wireless sensor contacts, and displays relevant parameters on the client software. At the same time, the system can realize corresponding safety control, such as remote valve control (opening and closing), which greatly reduces the operation and management cost of equipment for users and increases the safety factor of equipment operation.

LNG filling station includes gas dispenser management system, vehicle management system, IC card management system, operation management system, etc. By using the gas control system, the key data of each system can be extracted and integrated into the monitoring system, so that multiple systems can be truly seamlessly integrated, and it is convenient for system administrators and operators to understand the operation of the whole filling station. As a subsystem of gas comprehensive monitoring, LNG monitoring system can provide information such as equipment operation parameters and gas consumption in the station to the superior monitoring system, and provide managers and dispatchers with the basis for correct decision-making and reasonable scheduling. Please refer to/