（一）、一般說明

   本設(shè)備的主要包括：切斷、計量、調(diào)壓方面，其主要流程為：天然氣通過切斷閥、進(jìn)入本設(shè)備，通過每個閥組，球閥、計量、調(diào)節(jié)閥后流出本設(shè)備。

減壓過程中，每級出口配置現(xiàn)場顯示壓力表，便于觀察。

手動放散閥是進(jìn)行排空，還可用于設(shè)備檢修時，排空設(shè)備內(nèi)的余氣，防止出現(xiàn)安全事故。

（二）、主要零部件說明

(1) 調(diào)節(jié)閥（減壓閥）

工作原理：入口壓力被取氣閥的壓力反作用膜片上,指揮器動作,指揮閥口打開,負(fù)載壓力加大,從而使主閥閥口打開, 使流量加大以滿足要求.

▼易損件：無                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

（2）切斷閥

切斷閥在進(jìn)口。其作用為：當(dāng)調(diào)壓器后超壓時，及時切斷進(jìn)口氣源，設(shè)備不被損壞及設(shè)備安全。

（3）手動安全放散閥

  可人工開啟手動放散閥門進(jìn)行排空，還可用于設(shè)備檢修時，排空設(shè)備內(nèi)的余氣，防止出現(xiàn)安全事故。