大气污染估算报告

镇海炼化72kt/a硫磺回收制二硫化碳生产项目大气污染估算报告22017“东华科技-陕鼓杯”第十一届全国大学生化工设计竞赛镇海炼化72kt/a硫磺回收制二硫化碳生产项目大气污染估算报告团队名称： 安徽工程大学硫芳百世团队 指导老师： 李芳 方兴龙 杨仁春 李兴扬 任一鸣 团队成员： 吴中善 李涛 杨近 黄旭 潘维利 完成时间：2017年7月目 录第一章 概述1第二章 污染源分析22.1 污染源参数设定22.2 污染物参数设定22.3 预测参数设定32.4 计算结果分析32.5 计算结果图示42.6 计算输出结果45第一章 概述大气估算模式Screen 3是一个单源高斯烟羽模式，可计算点源、火炬源、面源、和体源的最大地面浓度，以及下洗和岸边熏烟等特殊条件下的最大地面浓度。经估算模式计算出的是某一污染源对环境空气质量的最大影响程度和影响范围的保守的计算结果。本次计算主要考虑尾气排放过程中的硫化氢，污染源为点源，污染物为硫化氢，通过估算和相关数据分析，估算硫化氢挥发损失速率为 0.042g/s，按照国家恶臭污染物排放标准，新建污染源的硫化氢的一级排放标准为0.03 mg/m3。在计算结果中，预测结果用不同颜色表述不同污染程度，占标率100%的为红色，80%为黄色，10%为绿色，10%为白色。可见我厂尾气排放一直远低于排放标准，不会造成高于国家排放标准的环境污染，符合绿色环保的理念。第二章 污染源分析2.1 污染源参数设定图2-1 污染源参数给定2.2 污染物参数设定图2-2 污染物参数设定2.3 预测参数设定图2-3 预测参数设定2.4 计算结果分析图2-4 计算结果2.5 计算结果图示图2-5 图形结果2.6 计算输出结果07/16/17 17:38:02 * SCREEN3 MODEL RUN * * VERSION DATED 96043 * SCREEN3 Input File for 硫化氢_H2S_点源 SIMPLE TERRAIN INPUTS: SOURCE TYPE = POINT EMISSION RATE (G/S) = 0.161000 STACK HEIGHT (M) = 20.0000 STK INSIDE DIAM (M) = 0.1000 STK EXIT VELOCITY (M/S)= 0.1500 STK GAS EXIT TEMP (K) = 373.1500 AMBIENT AIR TEMP (K) = 289.5500 RECEPTOR HEIGHT (M) = 0.0000 URBAN/RURAL OPTION = RURAL BUILDING HEIGHT (M) = 0.0000 MIN HORIZ BLDG DIM (M) = 0.0000 MAX HORIZ BLDG DIM (M) = 0.0000 THE REGULATORY (DEFAULT) MIXING HEIGHT OPTION WAS SELECTED. THE REGULATORY (DEFAULT) ANEMOMETER HEIGHT OF 10.0 METERS WAS ENTERED. BUOY. FLUX = 0.001 M*4/S*3; MOM. FLUX = 0.000 M*4/S*2. * FULL METEOROLOGY * * * SCREEN AUTOMATED DISTANCES * * * TERRAIN HEIGHT OF 0. M ABOVE STACK BASE USED FOR FOLLOWING DISTANCES *镇海炼化72kt/a硫磺回收制二硫化碳生产项目大气污染估算报告表2-1 Screen3Mod计算结果DIST(M)CONC(UG/M3)TABU10M(M/S)USTK(M/S)MIX HT(M)PLUMEHT (M)PLUME HTY (M)SIGMAZ (M)DWASH100.00011.01.0320.019.833.361.58NO10047.4511.01.0320.019.8326.8513.95NO20053.1631.01.1320.019.8323.6214.03NO30044.0941.01.1320.019.8222.6112.09NO40044.2241.01.1320.019.8229.4515.27NO50038.8441.01.1320.019.8236.1518.3NO60032.9441.01.1320.019.8242.7221.21NO70027.8141.01.1320.019.8249.1924.03NO80025.1851.01.310000.022.2841.5518.28NO90023.3551.01.310000.022.2846.2719.98NO10002261.01.510000.021.7533.8913.97NO110021.7861.01.510000.021.7536.9714.83NO120021.361.01.510000.021.7540.0215.67NO130020.6661.01.510000.021.7543.0516.48NO140019.9261.01.510000.021.7546.0517.27NO150019.1361.01.510000.021.7549.0318.04NO160018.3461.01.510000.021.755218.79NO170017.5561.01.510000.021.7554.9419.52NO180016.7861.01.510000.021.7557.8720.24NO190016.0461.01.510000.021.7560.7820.95NO200015.3361.01.510000.021.7563.6821.63NO210014.6661.01.510000.021.7566.5622.22NO220014.0361.01.510000.021.7569.4322.79NO230013.4461.01.510000.021.7572.2823.35NO240012.8961.01.510000.021.7575.1223.89NO250012.3761.01.510000.021.7577.9524.43NO260011.8861.01.510000.021.7580.7724.96NO270011.4261.01.510000.021.7583.5725.48NO280010.9961.01.510000.021.7586.3725.99NO290010.5861.01.510000.021.7589.1526.49NO300010.261.01.510000.021.7591.9326.98NO35008.62661.01.510000.021.75105.6528.99NO40007.42761.01.510000.021.75119.1730.84NO45006.48961.01.510000.021.75132.532.58NO50005.73961.01.510000.021.75145.6734.21NO55005.12761.01.510000.021.75158.6935.76NO60004.61961.01.510000.021.75171.5837.24NO65004.19461.01.510000.021.75184.3438.65NO70003.83161.01.510000.021.75196.9940.01NO75003.52961.01.510000.021.75209.5441.17NO80003.26761.01.510000.021.75221.9942.28NO85003.03861.01.510000.021.75234.3443.36NO90002.83561.01.510000.021.75246.6144.4NO95002.65661.01.510000.021.75258.7945.41NO100002.49661.01.510000.021.75270.946.39NO150001.51861.01.510000.021.75388.4354.89NO200001.08661.01.510000.021.75500.9560.3NO250000.836761.01.510000.021.75609.7564.86NO8镇海炼化72kt/a硫磺回收制二硫化碳生产项目大气污染估算报告MAXIMUM 1-HR CONCENTRATION AT OR BEYOND 10. M: 199. 53.16 3 1.0 1.1 320.0 19.83 23.62 14.03 NODWASH= MEANS NO CALC MADE (CONC = 0.0)DWASH=NO MEANS NO BUILDING DOWNWASH USEDDWASH=HS MEANS HUBER-SNYDER DOWNWASH USEDDWASH=SS MEANS SCHULMAN-SCIRE DOWNWASH USEDDWASH=NA MEANS DOWNWASH NOT APPLICABLE, X3*LB* SCREEN DISCRETE DISTANCES * TERRAIN HEIGHT OF 0. M ABOVE STACK BASE USED FOR FOLLOWING DISTANCES * DIST CONC U10M USTK MIX HT PLUME SIGMA SIGMA (M) (UG/M*3) STAB (M/S) (M/S) (M) HT (M) Y (M) Z (M) DWASH - - - - - - - - - - 100. 47.45 1 1.0 1.0 320.0 19.83 26.85 13.95 NODWASH= MEANS NO CALC MADE (CONC = 0.0)DWASH=NO MEANS NO BUILDING DOWNWASH USEDDWASH=HS MEANS HUBER-SNYDER DOWNWASH USEDDWASH=SS MEANS SCHULMAN-SCIRE DOWNWASH USEDDWASH=NA MEANS DOWNWASH NOT APPLICABLE, X3*LB* SUMMARY OF TERRAIN HEIGHTS ENTERED FOR * SIMPLE ELEVATED TERRAIN PROCEDURE * TERRAIN DISTANCE RANGE (M) HT (M)