<p>我来说一下加热炉的简单控制.</p><p>由于下面的图片上传上来看不清楚.请下载word里面的图形看.<br/> </p><div class="O" vshape="_x0000_s1026"><span style="FONT-SIZE: 89%; FONT-FAMILY: 仿宋_GB2312;"><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 60%; LEFT: -3.45%; COLOR: #3333cc; FONT-FAMILY: Wingdings; POSITION: absolute; TOP: 0.61em; mso-special-format: bullet; mso-color-index: 7;">n</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b>炉出口温度与燃料油或燃料气的串级控制, 给炉出口温度一个设定值, 通过调整燃料油或燃料</b></span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b>气流量控制炉出口温度 </b></span></div></span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b>炉出口温度与燃料油或燃料气的串级控制, 给炉出口温度一个设定值, 通过调整燃料油或燃料</b></span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b>气流量控制炉出口温度 </b></span><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><strong></strong></span></div><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b></b></span></div><span style="FONT-SIZE: 89%; FONT-FAMILY: 仿宋_GB2312;"><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 60%; LEFT: -4.05%; COLOR: #3333cc; FONT-FAMILY: Wingdings; POSITION: absolute; TOP: 0.61em; mso-special-format: bullet; mso-color-index: 7;">n</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b><br/> </b></span></div></span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b>炉膛负压一般采用单回路定值控制,根据炉膛内压力的高低来调整烟道挡板角度 </b></span><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><strong></strong></span></div><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b></b></span></div><span style="FONT-SIZE: 89%; FONT-FAMILY: 仿宋_GB2312;"><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 60%; LEFT: -3.45%; COLOR: #3333cc; FONT-FAMILY: Wingdings; POSITION: absolute; TOP: 0.61em; mso-special-format: bullet; mso-color-index: 7;">n</span></div></span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b>氧含量也采用单回路定值控制,根据实测的烟气中氧含量与设定的氧含量的偏差来调节进空气</b></span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"><b>蝶阀开度 </b></span><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"> <div class="O" vshape="_x0000_s1026"><span style="FONT-SIZE: 89%; FONT-FAMILY: Tahoma;"><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 60%; LEFT: -3.45%; COLOR: #3333cc; FONT-FAMILY: Wingdings; POSITION: absolute; TOP: 0.61em; mso-special-format: bullet; mso-color-index: 7;"><strong>n</strong></span></div></span><strong><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: Tahoma; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;">空气量随燃料量的变化存在较大滞后,燃料量已经发生了变化,而空气量只有在检测到烟气中</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: Tahoma; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;">氧含量发生变化时,才由氧含量控制回路调整空气量的大小。</span></strong><br/> <div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><strong><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: Tahoma; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"> </span></strong></div><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: Tahoma; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"></span></div><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 89%; FONT-FAMILY: Tahoma;"><span style="FONT-SIZE: 60%; LEFT: -3.45%; COLOR: #3333cc; FONT-FAMILY: Wingdings; POSITION: absolute; TOP: 0.61em; mso-special-format: bullet; mso-color-index: 7;"><strong>n</strong></span></span><strong><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: Tahoma; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;">燃料量的变化会引起炉膛内压力的变化,只有在检测到炉堂内压力变化时,才由炉膛压力控制</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: Tahoma; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;">回路来调节烟道挡板角度,加热炉达到一个新的稳态需要较长的时间,影响加热炉的燃烧效果。</span></strong></div></div></span></div><div style="mso-line-spacing: '100 20 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 仿宋_GB2312; mso-ascii-font-family: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-fareast-font-family: 仿宋_GB2312;"></span></div><div style="mso-line-spacing: '100 50 0'; mso-margin-left-alt: 216; mso-char-wrap: 1; mso-kinsoku-overflow: 1;"></div></div><br/><br/>
[此贴子已经被作者于2007-4-10 0:30:42编辑过]
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