�u�h��ڹ��̟��Ó��

��r�g��2009-02-26 10:33 ��Դ�� : ��x��1785

ǰ�ԣ�

��҇��h(hu��n)��o��ߺ��Ҫ,��^ȼú�վ��m(x��)ͬ��O��Ó��b�ú�,��늏S��Ⱦ��ŷŘ˜ʡ��GB13223-2003��Ҫ��“��3 �r�Σ�2004��1��1��𣩻��l(f��)�偠t��A��Ó��b�ÿ��g”,��ľ��A늇��H�u�h�l(f��)늏S��ڹ��̵�Ó��M��Փ��ͼ��g��^��

�A늇��H�u�h�l(f��)늏Sλ��ɽ�|ʡ�u��10��ƴ��(zh��n),��ɽ�|��W��늏S,��Ҳ��һ��͵V��늏S��늏Sһ��,��ڹ��̹��b��_300MW�C�M (��Č��H��4x335MW),��ѷքe��1985�ꡫ1989�꽨��Ͷ�a��ڹ��b�O��_600MW�C�M,��քe��1997��1�º�11��Ͷ�a,��ڔU��̰��b2�_1000MW��R��݆�l(f��)늙C�M��И˷�ʽ�_��C��偠t��|��偠t��F��ɷ��޹�˾,��BHK��BHDB�ĮaƷ,��݆�C��|��݆�C�S,��ĮaƷ��l(f��)늙C��|��늙C�ɷ��޹�˾�ĮaƷ,��

1. ��Ó��

1.1 �u�h��ڹ��Ѳ�ȡ�Ĵ�ʩ

��ИI(y��)��NOx�ŷŵķ��,��Ŀǰ��Ҫ�Рt�ȵ͵�ȼ��g�͟��Ó��g��ǰ��ƺ͜p��偠tȼ��^��е�NOx�a��ŷ�,��Ǐ�偠t�ŷŵğ��Ó��NOx,��ڹ��偠t�И˕r��Ҫ��偠t��ȡ��NOxȼ��ȼ�M�L��ϵ�y(t��ng)��CNOx��ŷŝ��350mg/Nm³��£��һ��̶��Ϝp�� NOx��ŷ��,��Ҫ�ڴ˻��A��Mһ��NOx��ŷ��,��t��횲�ȡ��Ó��ķ��SCR��,��

1.2 SCR��Ó��

SCR��ˇϵ�y(t��ng)��Ҫ��SCR��߻��,��Ƃ䡢�惦ϵ�y(t��ng),��ϵ�y(t��ng)��Ó��ϵ�y(t��ng)��,��

1.2.1 SCR��߻��

1.2.2 ��Ƃ䡢�惦ϵ�y(t��ng)

��ЃɷN�Ƃ䷽��ֱ�ӷ��g�ӷ�,��

ֱ�ӷ�ͨ�^Һ��ˮ�⻯��ȡ��,��Һ�B(t��i)NH3��횴��ڈA�λ�A��Ή��ރȣ��÷��ڵ��,��惦�޵��OӋ��ɹ��ʹ�á�늏S�惦�޵ĳߴ�� 50m3��200m3֮�g,��NH3�ă��^3��ͱ�회��䰲ȫ��u�r,��ܮa��ż�l(f��)�¼��\��ˆT��늏S��Ŀǰ�ļ��gˮƽ��ȡ��еİ�ȫ��ʩ,��Ѕ^(q��)�ȵ�늏S��횽��,��M�܃��ܲ��Ҫ�@��,��ҪͿ�Ϸ��ӣ��r�ࣩ,��惦��Ҫ��ğᷴ��ӡ�Һ�B(t��i)NH3��É��܇�\��,��1000��İ��ƿ��b�\,��h��Ãɂ��,��ֹ��һ��й©,��C��һ��޾S�ޕrSCR��g��,��ޡ��÷��܇��b��Ї��ϵ�y(t��ng),��κ�й©�İ��,��⑪��޷��ڴ��Ųۃ�,��Ų۵Ĵ�С��ݼ{��󃦹޵�2/3�w�e,��

�g�ӷ��ˮ��ط�,��ͨ�^��ˮ��ȡ��,��乤ˇ��̴��£��\ݔ��܇��Ȱ��؃A��һ��Aж����,��ăAж�޳��M��һ��,��ڻ��غ��ѭ�h(hu��n)�ô��ğ�ˮ��,��ڔ��u�ܽ�,��ȫ�ܽ��,��ñð��Һ��Һ��ރ��,��ă��޳��Һ�ڱõ��½��^�ύ�Q��ӟᵽ��ضȺ��M��ˮ��,��ύ�Q��ğ��Դ��ˮ��ؚ�Һ��,��Һ��ˮ��ۃ�ˮ��,��a��,��仯�W��ʽ��£�

2. �A��ķ��

2.1 ��һ

��A��A��Ϸ��bSCR��λ�ã��F(xi��n)�A�β��ß��B��,��ʩ��Ó��r��@��֟��,��ͬ�r�Ӹ߿��A��䓼�,��bSCR��

3. ��Է��

3.1 Ͷ�Y��һ�_�t��

�F(xi��n)�A��M��Ó��b�õĳ�Ͷ�Y�M��150��250Ԫ/kW��ң��߻��M�ڣ��190Ԫ/kWӋ,��tÿ�_�tÓ��b�ÿ�Ͷ�Y�M�üs��1.9�|Ԫ,��˲��M�ð��Ó��ⲿϵ�y(t��ng)��r��b�M�ü��L�C�ȵĸ��M��,��߻��M�üsռ��Ͷ�Y��30%��40%��Ó��b��ӵ�偠t䓼��s2000t,��1100t��,��

��ڰ��bÓ��b�ã��Ӽs600��1300Pa,��800PaӋ,��ʹ��L�C�ĉ��^��늹��ӽ�22%,��s��Ͷ�Y270�fԪ,��

��⣬��Ŀǰ�]��Ó��b�É��s�՚��Ԕ��,��֪�Ƿ��Ҫ��Չ��Cϵ�y(t��ng)�͏S��Wվϵ�y(t��ng),��

��Ó��b�ú�䓽Y��ӵ��,��Ӌ�O��A��ӵ��M�üs��250�fԪ��Ӌ��Y��ͽ��^Ҋ�±��

3.3 ��M�ñ��^

��С��M�ñ��^��,��Ӌ�㹫ʽ��£�

A=P·I (1+I)n/((1+I)n-1)+R+S=0.08549P+R+S

A--��M�� P--��Ͷ�Y R--��\��M��M,��z�޾S�o�M��

n—��a�꣨20�꣩ I--��ʣ��J�ȡ0.0576

S--ϵ�y(t��ng)�M�ã��̎ȡ0,��

�C��ϸ��,��_�C�M��M�ñ��^Ҋ��3.3 -1��

��3.3 -1 ��M�ñ��^��ԣ�

4. �YՓ

��ÿ�_�t��Ó��һ��Ͷ�Y�s��2�|Ԫ��M��Ó��b��Ͷ�Y�M190Ԫ/kWӋ�㣩,��\��M�üs��2577.2�fԪ��߻��10��Ӌ�㣩,��NOx�ŷ��M�H415.8�fԪ��,��偠tͨ�^��õ͵�ȼ��g��,��Ҫ��偠tͶ�ˏS��CNOx��ŷ��350mg/Nm3��,��ѝM��Ⱦ��ŷŘ˜�GB13223-2003Ҏ(gu��)��≤400mg/Nm3��Ҫ��,��u�h��ڹ��K��A��һ��

1��偠t䓼��Ȟ�74.8m,�,��A��̎��λ,��A��䓼ܵ��OӋ��]�ˌ��b��ʹ߻��ĺ��d,��

2��S�^(q��)��A��Ƃ�,��惦��,��

3��L�C��o�~��{�S��ʽ,��δ��]Ó��b��,��

4��偠t�ڵ�ؓ�ɕr��Կ��_��300��,��δ�Oʡú��·,��

5��A��Բ��ʽ�Y��,��f(xi��)�hҪ��S��OӋ�r��]�b�OÓ��b�ú��Q�͜ض΂��Ԫ��´ɣ��r��Ӱ푿��A��w��á��w�Y��,��

����D�d��ǳ��ڂ��f��Ϣ֮Ŀ�ġ��Ё�Դ��ע�e�`��ַ��ĺϷ��棬Ո��߳֙��C��c��W(li��n)ϵ,��҂��r��,��h��,��x�x��