当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2014年
9期
1833-1835
,共3页
放空系统%放空立管%火炬%安全阀%马赫数%天然气
放空繫統%放空立管%火炬%安全閥%馬赫數%天然氣
방공계통%방공립관%화거%안전벌%마혁수%천연기
Venting system%Blowdown stand pipe%Flare system%Safety valve%Mach number%Natural gas
在天然气长输管道的放空设计上,没有成熟的理论和方法来设计,所以研究各种方法的优缺点至关重要。一般来说,设计放空系统要先初选各种设备的参数,然后带入初选参数迚行水力计算,迚而迚行比选确定方案。在完成了选型和水力计算以后,选取可能出现的最恶劣情形迚行后果模拟分析。各种计算方法和模拟软件在使用过程中都各具优点和缺点,适用工况各不相同,为了更准确的设计放空系统,需要根据放空工况和物理参数,优选各个方法配合来迚行放空系统设计。
在天然氣長輸管道的放空設計上,沒有成熟的理論和方法來設計,所以研究各種方法的優缺點至關重要。一般來說,設計放空繫統要先初選各種設備的參數,然後帶入初選參數迚行水力計算,迚而迚行比選確定方案。在完成瞭選型和水力計算以後,選取可能齣現的最噁劣情形迚行後果模擬分析。各種計算方法和模擬軟件在使用過程中都各具優點和缺點,適用工況各不相同,為瞭更準確的設計放空繫統,需要根據放空工況和物理參數,優選各箇方法配閤來迚行放空繫統設計。
재천연기장수관도적방공설계상,몰유성숙적이론화방법래설계,소이연구각충방법적우결점지관중요。일반래설,설계방공계통요선초선각충설비적삼수,연후대입초선삼수중행수력계산,중이중행비선학정방안。재완성료선형화수력계산이후,선취가능출현적최악렬정형중행후과모의분석。각충계산방법화모의연건재사용과정중도각구우점화결점,괄용공황각불상동,위료경준학적설계방공계통,수요근거방공공황화물리삼수,우선각개방법배합래중행방공계통설계。
There is no mature theory and method about design of venting system for gas transmission pipeline, so it is very important to study advantages and disadvantages of various methods. In general, parameters of various devices should be selected primarily,and then primary parameters are put into software,finally optimal solution is determined. After finishing type selection and hydraulic calculation, the most serious condition will be selected to simulate hazards consequence. All calculation methods and simulation software have advantages and disadvantages, applicable conditions are not identical. In order to design venting system more accurately, the design should select optimum method based on working conditions and physical parameters.