合水县日产50万方液化天然气（LNG）及提氦项目，采用双列高压混合冷剂液化工艺，配套螺杆压缩机，进行天然气液化与分离，生产LNG产品，对BOG中氦气进行提纯与回收。

The 500,000 cubic meters of liquefied natural gas (LNG) and helium extraction project in Heshui County adopts a double-row high-pressure mixed refrigerant liquefaction process and a screw compressor to liquify and separate natural gas, produce LNG products, and purify and recover helium in BOG.