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风机数é‡çš„ç¡®å®?æ ÒŽ®æ‰€é€‰æˆ¿é—´çš„æ¢æ°”‹Æ¡æ•°.计算厂房所需总风é‡?˜q›è€Œè®¡½Ž—得风机数é‡.计算公å¼:N=V×n/Q 其中:N--风机数é‡(å?, V--场地体积(m3), n--æ¢æ°”‹Æ¡æ•°(‹Æ?æ—?, Q--所选风机型åïLš„å•å°é£Žé‡(m3/h). 风机型å·çš„选择应该æ ÒŽ®åŽ‚房实际情况.ž®½é‡é€‰å–与原½H—壞®ºå¯¸ç›¸åŒ¹é…的风机型å·.通风[2] 风机与湿帘尽é‡ä¿æŒä¸€å®šçš„è·ç¦»(ž®½å¯èƒ½åˆ†åˆ«è£…在厂房的山墙两侧).实现良好的通风æ¢æ°”效果.排风侧尽é‡ä¸é è¿‘附近建筑ç‰?以防影å“附近ä½æˆ·.如从室内带出的空气中å«æœ‰æ±¡æŸ“环境.å¯ä»¥åœ¨é£Žå£å®‰è£…喷水装¾|?å”R™„˜q‘污染物集中回收.ä¸æ±¡æŸ“环境ã€?/span></div> <div> <br /> <span style="font-size:14px;">æ€ÀLŽ¨åŠ›It</span></div> <div> <span style="font-size:14px;">It=â–³P×At(N)</span></div> <div> <span style="font-size:14px;">其中,At:隧é“横截é¢ç§¯(m2)</span></div> <div> <span style="font-size:14px;">â–?P:å„项é˜ÕdŠ›ä¹‹å’Œ(Pa);一般应计åŠä¸‹åˆ—4™å?</span></div> <div> <span style="font-size:14px;">1) 隧铘q›é£Žå£é˜»åŠ›ä¸Žå‡ºé£Žå£é˜»åŠ?</span></div> <div> <span style="font-size:14px;">2) 隧é“表é¢æ‘©æ“¦é˜ÕdŠ›,悬åŠé£Žæœºè£…ç½®ã€æ”¯æž¶åŠè·¯æ ‡½{‰å¼•èµïLš„é˜ÕdŠ›;</span></div> <div> <span style="font-size:14px;">3) 交通阻åŠ?</span></div> <div> <span style="font-size:14px;">4) 隧铘q›å‡ºå£ä¹‹é—´å› æ¸©åº¦ã€æ°”压ã€é£Žé€Ÿä¸åŒè€Œç”Ÿçš„压力差所产生的阻åŠ?</span><br />  </div> <div> <strong><span style="font-size:14px;">风机布置</span></strong></div> <div>  </div> <div> <span style="font-size:14px;">æ ÒŽ®éš§é“长度ã€æ‰€éœ€æ€ÀLŽ¨åŠ›ä»¥åŠå°„‹¹é£Žæœºæ供推力的范围,åˆæ­¥¼‹®å®šåœ¨éš§é“总长上共布置m¾l„风æœ?æ¯ç»„nå?æ¯å°é£Žæœºçš„推力äØ“T.</span></div> <div> <span style="font-size:14px;">满èƒöm×n×T≥Ttçš„æ€ÀLŽ¨åŠ›è¦æ±?åŒæ—¶è€ƒè™‘下列é™åˆ¶æ¡äšg:</span></div> <div> <span style="font-size:14px;">1) nå°é£Žæœºåƈ列时,其中心线横å‘é—´è·åº”大äº?å€é£Žæœºç›´å¾?/span></div> <div> <span style="font-size:14px;">2) m¾l?å?风机串列æ—?¾Uµå‘é—´è·åº”大äº?0å€éš§é“ç›´å¾?/span></div> <div> <span style="font-size:14px;">å‚æ•°¼‹®å®š:</span></div> <div> <span style="font-size:14px;">ž®„æµé£Žæœºçš„性能以其施加于气‹¹çš„推力æ¥è¡¡é‡?风机产生的推力在ç†è®ºä¸Šç­‰äºŽé£Žæœø™¿›å‡ºå£æ°”æµçš„动é‡å·®(动釽{‰äºŽæ°”æµè´¨é‡‹¹é‡ä¸Žæµé€Ÿçš„乘积),在风机测试æ¡ä»¶å…ˆ,˜q›å£æ°”æµçš„动é‡äØ“é›?所以å¯ä»¥è®¡½Ž—出在测试æ¡ä»¶ä¸‹,风机的ç†è®ºæŽ¨åŠ?</span></div> <div> <span style="font-size:14px;">ç†è®ºæŽ¨åŠ›=p×Q×V=pQ2/A(N)</span></div> <div> <span style="font-size:14px;">P:½Iºæ°”密度(kg/m3)</span></div> <div> <span style="font-size:14px;">Q:风é‡(m3/s)</span></div> <div> <span style="font-size:14px;">A:风机出å£é¢ç§¯(m2)</span></div> <div> <span style="font-size:14px;">试验å°æž¶é‡æµ‹æŽ¨åŠ›T1一般äØ“ç†è®ºæŽ¨åŠ›çš?.85-1.05å€?å–决于æµåœºåˆ†å¸ƒä¸Žé£Žæœºå†…部åŠæ¶ˆå£°å™¨çš„结æž?风机性能å‚数图表中所¾l™å‡ºçš„风机推力数æ®å‡ä»¥è¯•éªŒå°æž‰™‡‹¹‹æŽ¨åŠ›äØ“å‡?但釋¹‹æŽ¨åŠ›è¿˜ä¸ç­‰äºŽé£Žæœø™£…在隧é“内所能äñ”生的å¯ç”¨æŽ¨åŠ›T,˜q™æ˜¯å› äؓ风机åŠè£…在隧é“中时会å—到隧é“中气‹¹é€Ÿåº¦äº§ç”Ÿçš„å¸è·ä½œç”¨çš„å½±å“(柯达æ©æ•ˆåº?,å¯ç”¨æŽ¨åŠ›å‡å°‘.å½±å“的程度å¯ç”¨ç³»æ•°K1å’ŒK2æ¥è¡¨½Cºå’Œè®¡ç®—:</span></div> <div> <span style="font-size:14px;">T=T1×K1×K2或T1=T/(K1×K2)</span></div> <div> <span style="font-size:14px;">其中T:安装在隧é“中的射‹¹é£Žæœºå¯ç”¨æŽ¨åŠ?N)</span></div> <div> <span style="font-size:14px;">T1: 试验å°æž¶é‡æµ‹æŽ¨åŠ›(N)</span></div> <div> <span style="font-size:14px;">K1:隧é“中åã^å‡æ°”‹¹é€Ÿåº¦ä»¥åŠé£Žæœºå‡ºå£é£Žé€Ÿå¯¹é£ŽæœºæŽ¨åŠ›çš„媄å“ç³»æ•?/span></div> <div> <span style="font-size:14px;">K2:风机轴浼›»éš§é“å£ä¹‹é—´è·ç¦»çš„媄å“ç³»æ•?/span></div></div> </div><img src="/images/fjwxh.jpg" style=" max-width: 100%;"> <div class="dis_prevnext clearfix"> <p class="left">上一½‹‡ï¼š<a ><a href="/html/fjzs_1606_2636.html" title="¼›Õd¿ƒé£Žæœºçš„工作原ç?>¼›Õd¿ƒé£Žæœºçš„工作原ç?/a></a> </p> <p class="right">下一½‹‡ï¼š<a>没有äº?/a> </p> </div> <p class="dis_block_title">您å¯èƒ½è¿˜éœ€è¦äº†è§?/p> <div class="list_liaojie clearfix"> <ul> <li><a href="/html/lcgfj_1617_2621.html" target="_blank"><img src="/UploadFiles/2014-08/0/2014080918333934844.jpg" alt="L¾pÕdˆ—¾|—茨鼓风æœ?></a></br><p>L¾pÕdˆ—¾|—茨鼓风æœ?/p></li> <li><a href="/html/gygfj_1610_2511.html" target="_blank"><img src="/UploadFiles/2014-07/0/2014071615440210496.jpg" alt="9-19型高压离心鼓风机"></a></br><p>9-19型高压离心鼓风机</p></li> <li><a href="/html/gygfj_1610_2503.html" target="_blank"><img 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