Online detection system for water content in dehydrated high-pressure natural gas

The utility model relates to an on-line detection system for water content in dehydrated high-pressure natural gas, and belongs to the technical field of chemical analysis. The on-line detection system for the water content in the dehydrated high-pressure natural gas comprises a sampling device, a preceding-stage filtering device, a heating and pressure reducing device, a pressure adjusting device, a fine filtering device, a flow adjusting device and a water content on-line analyzer which are connected in sequence, and can reliably filter and reduce the pressure of the high-pressure natural gas; meanwhile, the influence caused by the Joule-Thomson decompression effect is avoided, and the accuracy of water content detection is improved. 本实用新型涉及一种脱水后的高压天然气中含水量的在线检测系统，属于化工分析技术领域。本实用新型的脱水后的高压天然气中含水量的在线检测系统，包括依次连接的取样装置、前级过滤装置、加热减压装置、压力调节装置、精细过滤装置、流量调节装置和水含量在线分析仪，可对高压天然气进行可靠的过滤、减压，同时避免焦耳-汤姆逊减压效应带来的影响，提高含水量检测的准确性。