ããè´®ç 室çé«åº¦h3ï¼
ããéç¨éåæç ï¼æ± åºè®¾6%å¡åº¦å¡åç æï¼åï¼ h3=h'3+0.06l2=1.4+0.06*(L-2b2-b')=1.72(m)ï¼å
¶ä¸b'为æ²ç æé´è·ï¼å0.2mã
ããå¹³æµæ²ç æ± çå·¥èºè®¡ç®
ãã污水å¨è¿ç§»ãæµå¨åæ±éè¿ç¨ä¸ä¸å¯é¿å
ä¼æ··å
¥æ³¥ç ã污水 ä¸çç å¦æä¸é¢å
æ²éå离å»é¤ï¼åä¼å½±ååç»å¤ç设å¤çè¿è¡ãæ主è¦çæ¯ç£¨ææºæ³µãå µå¡ç®¡ç½ï¼å¹²æ°çè³ç ´åçåå¤çå·¥èºè¿ç¨ãæ²ç æ± ä¸»è¦ç¨äºå»é¤æ±¡æ°´ä¸ç²å¾å¤§äº0.2mmï¼å¯åº¦å¤§äº2.65t/ç«æ¹ç±³çç ç²ï¼ä»¥ä¿æ¤ç®¡éãéé¨ç设æ½å
å磨æåé»å¡ãå
¶å·¥ä½åçæ¯ä»¥éåå离为åºç¡ï¼æ
åºå°æ²ç æ± çè¿æ°´æµéæ§å¶å¨åªè½ä½¿æ¯é大çæ æºé¢ç²ä¸æ²ï¼èææºæ¬æµ®é¢ç²åéæ°´æµå¸¦èµ·ç«ãæ²ç æ± ä¸»è¦æå¹³æµæ²ç æ± ãææ°æ²ç æ± ãææµæ²ç æ± çãç°ä»£è®¾è®¡ç主è¦æææµæ²ç æ± ã
ãã设计åæ°ï¼
ãã1ï¼æ±¡æ°´å¨æ± å
çæ大æµé为0.3m/sï¼æå°æµéåºä¸å°äº0.15m/s
ãã2ï¼æé«æ¶æµéæ¶ï¼æ±¡æ°´å¨æ± å
çåçæ¶é´ä¸åºå°äº30sï¼ä¸è¬å30~60sã
ãã3ï¼æææ°´æ·±ä¸åºå¤§äº1.2mï¼ä¸è¬éç¨0.25~1.0mï¼æ¯æ ¼å®½åº¦ä¸å®å°äº0.6mã
ãã4ï¼æ± åºå¡åº¦ä¸è¬ä¸º0.01~0.02ï¼å½è®¾ç½®é¤ç 设å¤çè¦æ±ï¼ç¡®å®æ± åºçå½¢ç¶ã
ãã设计è¦æ±ï¼
ãã1ï¼æ±¡æ°´æµéæ»ååç³»æ°å1.2ã 2ï¼æ²³æ°´å¤çæ°´éï¼15ä¸m3/dã 3ï¼åå¼ï¼å¹³æµå¼ã 4ï¼æ°´ååçæ¶é´é50sã
ãã5ï¼æ²ç éå¯é0.05~0.1L/m3ï¼è´®ç æ¶é´ä¸º2dï¼éåææ²ã
ãã6ï¼è´®ç æä¸å®å¤ªæ·±ï¼åºä¸æç æ¹æ³è¦æ±ãæ»ä½é«ç¨å¸ç½®ç¸éåºã
ããå·¥èºè®¡ç®ï¼
ãã1ï¼æ²ç é¨åçé¿åº¦Lï¼L=vt
ããå¼ä¸ï¼Lââæ²ç æ± æ²ç é¨åé¿åº¦ï¼mï¼ vââæ大设计æµéæ¶çé度ï¼m/sï¼ tââæ大设计æµéæ¶çåçæ¶é´ï¼sã
ããåæ大设计æµéæ¶çé度为0.3m/sï¼åçæ¶é´ä¸º50sã L=0.3*50=15(m)
ããï¼2ï¼æ°´æµæé¢é¢ç§¯Aï¼A=Qmax/v å¼ä¸ï¼Aââæ°´æµæé¢é¢ç§¯ï¼m2ï¼ Qmaxââæ大设计æµéï¼m3/sï¼
ããåæ大设计æµé为1.74m3/sã
ããA=1.74/0.3=5.8(m2)
ããï¼3ï¼æææ°´æ·±h2ï¼h2=A/b
ãã设计éç¨3个åæ ¼ï¼æ¯æ ¼å®½åº¦b3=1.7mï¼æ»å®½åº¦b=3*1.7=5.1mã
ããh2=5.8/5.1=1.14(m)<1.2m æ°æ®åæ ¼ã
ããï¼4ï¼è´®ç æ容积Vï¼V=86400QmaxTX/(1000Kz) å¼ä¸ï¼Vââæ²ç æ容积ï¼m3ï¼ Xââåé污水çæ²ç éï¼m3/sï¼ Tââæç æ¶é´çé´éï¼dï¼ Kzââ污水æµéæ»ååç³»æ°ã
ããåX为0.05L/m3ï¼T为2dï¼Kz为1.2ã V=86400*1.74*2*0.05/1000/1.2=12.528(m3)
ããï¼5ï¼æ²ç æ± æ¯ä¸ä¸ªåæ ¼è®¾2个æ²ç æï¼åå
±æ6个æ²ç æï¼æ¯æ ¼æ²ç æ容积V1=V/6=2.088m3
ããï¼6ï¼æ²ç æåé¨å尺寸计ç®
ããæ²ç ææåºå°ºå¯¸b1=0.5mï¼ä¸å£å®½ä¸æ²ç æ± æ¯ä¸ªåæ ¼å®½åº¦ç¸åï¼ä¸º1.7mãæå£ä¸æ°´å¹³é¢çå¾è§ä¸º60°ãè´®ç æé«åº¦h'3å1.4mãåè´®ç æçä¸å£é¿b2=2h'3/tan60°+0.5=2.1(m)
ããï¼7ï¼è´®ç æç容积V1ï¼ V1=1/3h'3(S1+S2+â(S1*S2)) å¼ä¸ï¼
ããV1ââè´®ç æ容积ï¼m3ï¼ h'3ââè´®ç æé«åº¦ï¼mï¼
ããS1ï¼S2ââåå«ä¸ºè´®ç æä¸å£åä¸å£çé¢ç§¯ï¼m3ã
ããV1=2.22m3>2.088m3 æ
è´®ç æ容积å¤ç¨ ,符åè¦æ±
ããï¼8ï¼è´®ç 室çé«åº¦h3ï¼
ããéç¨éåæç ï¼æ± åºè®¾6%å¡åº¦å¡åç æï¼åï¼ h3=h'3+0.06l2=1.4+0.06*(L-2b2-b')=1.72(m)ï¼å
¶ä¸b'为æ²ç æé´è·ï¼å0.2mã
ããï¼9ï¼æ± æ»é«åº¦Hï¼ H=h1+h2+h3
ããå¼ä¸ï¼h3ââè¶
é«ï¼mã è¶
é«å0.3mã H=0.3+1.14+1.72=3.16m
温馨提示:答案为网友推荐,仅供参考