�͜�SCRÓ��ڽ�?f��n)t��̎��еđ�(y��ng)��

��r(sh��)�g��2020-04-29 10:42 ��Դ��ȼ��c�� : �� O�� x��2367

ժҪ����B�˵͜�(170��185��) SCRÓ��ˇ�ڽ�?f��n)t��Ó��Ó��b�Ñ�(y��ng)�õĹ��̰��ԓ��ˇһ��Ͷ�Yʡ,�\(y��n)��M(f��i)�õ�,�ґ�(y��ng)�ú��O(sh��)��\(y��n)�з�(w��n)��,��Ó��Ч�ʸ�,��ĵ��Ⱦ�ﺬ��L�ڱ��150mg/m3��,��

��S��ҡ��W(xu��)��I(y��)��Ⱦ��ŷŘ�(bi��o)��(zh��n)��Č�(sh��)ʩ,��(n��i)��ИI(y��)��m(x��)��O(sh��)�˽�?f��n)t��Ó��Ó��b�á�Ó��ˇ��Ҫ��е͜�SCR��ˇ,��(y��ng)�ض��200��250�棬��Ҫ��M(j��n)��С��,��Դ�ɱ��ߵĆ��},��䓽��S�Y(ji��)�ϱ��λ��(sh��)�H��r��õ͜�SCRÓ��ˇ��˟��,��(ji��)�s��\(y��n)�гɱ�,��

1 ��?f��n)t��Ó��Ó��b�ø��

��䓽��S��(j��)��S��?f��n)t��Č�(sh��)�H��r�x��“��ɷ�Ó��( �c��) + ��m+ �͜�SCR Ó��”��ˇ��2��?f��n)t��1�׽�?f��n)t��Ó��Ó��b��,��քe�ĸ��ԵĿ��ԭ��R��M(j��n)��Ó��Ó��b��,��̎��քe��ظ��ԭ��裬��ˇ��̈DҊ�D1,��

��b��̎�ퟟ��30�fm3 /h,��ԭ��ضȞ�190��210 ��,��Ó��ڟ��ضȞ�170��190 �棬̎��ǰ��< 300mg /m3,��<1000mg /m3,��̎��󟟇��ŷſڵğ��w��O(sh��)Ӌ(j��)ֵ< 15 mg/m3��O(sh��)Ӌ(j��)ֵ<30 mg /m3,��O(sh��)Ӌ(j��)ֵ< 150mg/m3,��(j��ng)�^��(sh��)�H�\(y��n)��C��_(d��)��O(sh��)Ӌ(j��)ָ��(bi��o),��M�㡶��W(xu��)��I(y��)��Ⱦ��ŷŘ�(bi��o)��(zh��n)��؄e��ֵ�ŷ�Ҫ��,��ͬ�r(sh��)�b��\(y��n)�з�(w��n)��Ó��Ч�ʸ�,��(sh��)�F(xi��n)��A(y��)��Ŀ��(bi��o),��

2 �͜�SCRÓ��ˇ

2. 1 SCRÓ��̎��ԭ��

SCRÓ��ڴ߻��£�߀ԭ��( ��)�c��еĵ��ﷴ��(y��ng)��ɟo��ĵ�?d��)��ˮ,��Ķ�ȥ��е�NOx,��x��ָ߀ԭ��NH3�͟��е�NOx�l(f��)��߀ԭ��(y��ng)��Ҫ��(y��ng)ʽ��,��

4NO + 4NH3 + O2→4N2 + 6H2O( ��Ҫ��(y��ng))

2NO2 + 4NH3 + O2→3N2 + 6H2O

2. 2 �߻��ķ�͑�(y��ng)��

�߻��SCRÓ��ˇ�ĺ��,��߻��ķ��(y��ng)�ض��Ҫ�֞�ߜء��М�,��е͜�,��͜ء��(y��ng)��V��Ǹߜش߻��Мش߻��,��Ó��Ч�ʸ�,��(y��ng)�×l��V��1��(n��i)��߻��Ҫ��(y��ng)��r,��

��(n��i)��ИI(y��)Ŀǰʹ��^��е͜ش߻��,��͜ش߻��ʹ��^�٣��͜�SCR��޶ȵؽ��͟��Դ��,��p��һ��Ͷ�Y,��

2. 3 �͜�SCRÓ��R��y

( 1) ��?f��n)t��еĶ��SCR�߻��D(zhu��n)��180��230�淶��(n��i)��O��c��l(f��)��(y��ng)��@,��ڴ߻��,��Ó��Ч�ʡ�

( 2) ��д��w�ҵ��s�|(zh��),��L��\(y��n)�Е��(d��o)�´߻��,��߻��ǲ��ģ��Ҵ߻��ֱ��Ӱ푴߻��Ó��Ч�ʺ�ʹ�É��,��

2. 4 �͜�SCRÓ��Q��ʩ

( 1) ��M(j��n)��Ó��,��Ó��ڵĶ��x�ð�ɷ�Ó��,��F��Ɍ�Ó��F��50μm �ĘO��(x��)С�F��,��ӷ��(y��ng)��|��e��ʹÓ�򷴑�(y��ng)��,��ИO�ߵ�Ó��Ч��,��(j��ng)Ó��Ó��ǰ��10 mg /m3��¡�

( 2) ��c��Ó��,��140��c��߂�Ó��Ч�ʸ��,��ؽ��С�ă�(y��u)�ݣ�Ó��ؽ��Կ��15��20��,��CÓ��ضȿ��Ʋ��170��,��

( 3) Ó��ò��m��m��г��mЧ�ʸ�,��\(y��n)�з�(w��n)��ă�(y��u)�c(di��n),��δ��(y��ng)��Ó�򄩸��ڞV��棬��ʹ��ڞV��ɶ��Ó�򷴑�(y��ng),��Ó��Ч��,��(j��ng)��m��Ó��ǰ�w��10mg /m3��,��

( 4) �O(sh��)��b��,��L�r(sh��)�g�\(y��n)��£��߻��ķ��(y��ng)Ч��½��ǲ��ɱ��,��˱��O(sh��)�üӟ�t,��(d��ng)�߻��Ч��½��r(sh��)��_��ӟ�t�M(j��n)��ھ��,��֏�(f��)�߻��,��L�߻��ʹ�É��

( 5) �O(sh��)�ô��,��鱣�ִ߻��坍,��ֹ�߻��轛(j��ng)��M(j��n)�д��,��ߵ�Ŀ��Ƿ�ֹ�ҳ��e�ڴ߻��棬��b��\(y��n)�п�ÿ�촵��1 ��,��ÿ��1 ��,��

( 6) �x��(y��u)�|(zh��)�߻��錍(sh��)�F(xi��n)�(y��u)�߻��O(sh��)Ӌ(j��)��,��Ҫ��]�^��,��: �{(di��o)��߻��C�ĳɷֱ��@��^�߻��ԵĴ߻��; ��_(d��)��ͬһ��ܗl��,��߻��ıȱ��eԽ��Ҫ�߻��w�e��Խ��; �齵�ʹ߻��,��߻��Ҫ�O(sh��)Ӌ(j��)�Ƀ�(y��u)��ıں�,��ʹͨ�^�߻��ğ��≺��Ҳ�p��͡��䓸��(j��)��r�x��ˊW��Ceram �a(ch��n)Ʒ,��߻��Ҫ��g(sh��)��(sh��)��(j��)Ҋ��2,��

3 ��(sh��)�H��(y��ng)��r

ϵ�y(t��ng)Ͷ��\(y��n)��1 ��ң��a(ch��n)��(w��n)��,��Ó��Ч��_(d��)��85%��,��Ó��\(y��n)�Мض��180 ��ң��_(d��)��A(y��)��Ŀ��(bi��o),��ŷŔ�(sh��)��(j��)��3��ʾ,��

4 ��g(sh��)��c(di��n)

( 1) ��(j��ng)��(j��)�Ժá��(ji��)ʡ��е͜�Ó��ˇ��ĵ�ú��,��(ji��)�s�˳ɱ�,��

( 2) �m��Ժá��x�߻��170��185��Ľ�?f��n)t��⹤�r�¾��õ��m��,��Ó��Ч��Կ��_(d��)��85%��,��M��͜�Ó��\(y��n)�С�

( 3) ϵ�y(t��ng)�܉�M�㽹?f��n)t��Բ��ӵ��c(di��n),��C��ŷŷ�(w��n)��_(d��)��(bi��o),��

5 �Y(ji��)�Z

�͜�( 170��185 ��) SCRÓ��ˇ�ڌ��\(y��n)�е�1��r(sh��)�g��O(sh��)��\(y��n)�з�(w��n)��,��Ó��Ч�ʸ�,��ĵ��Ⱦ�ﺬ��L�ڱ��150 mg /m3 ��¡�ͬ�r(sh��)��һ��Ͷ�Yʡ,��\(y��n)��M(f��i)�õ͵ă�(y��u)�c(di��n),��(n��i)��I(y��)Ó��ˇ��x��ṩ�˸��x��ͽ��b��

����D(zhu��n)�d��ǳ��ڂ��f��Ϣ֮Ŀ��,��Ё�Դ��(bi��o)ע�e(cu��)�`��ַ��ĺϷ��(qu��n)��,��Ո��߳֙�(qu��n)��C��c��W(w��ng)(li��n)ϵ��҂��r(sh��)��,��h��,��x�x��