鎽樿 鎻愬嚭涓�绋�氶亷娓噺娉电殑娌栨暩(sh霉)渚嗛枔鎺ユ脯閲忔车鐨勫嚭鍙ｆ祦閲忕殑鏂规硶锛屽叿楂斾粙绱逛簡鍒╃敤杞�(zhu菐n)閫熷偝鎰熷櫒娓噺娉垫矕鏁�(sh霉)鐨勫師鐞�锛岀郸鍑轰簡娉靛嚭鍙ｆ祦閲忕殑瑷�(j矛)绠楀紡銆�
閴嗕簳鐢ㄧ殑寰�寰�(f霉)寮忔偿婕挎车锛屼織绋遍墕浜曠殑“蹇冭嚐”锛屽畠鐨勪富瑕佸姛鑳芥槸鍚戜簳涓嬪惊鐠�(hu谩n)杓搁�侀墕浜曟偿婕�锛屽皣閴嗕簳閬庣▼涓墕闋牬纰庣殑宸栧睉寰炰簳搴曟敎甯跺嚭渚嗗苟鐐轰簳涓嬪嫊(d貌ng)鍔涘嫊(d貌ng)鍔涢墕鍏锋彁渚涘嫊(d貌ng)鍔涖�傛车鐨勫嚭鍙ｆ祦閲忔槸褰遍熆閴嗕簳鏁堢巼鐨勪竴鍊�(g猫)閲嶈鍙冩暩(sh霉)锛屼篃鏄渶鍎�(y艒u)鍖栭墕浜曞伐钘濅腑蹇呴爤鍎�(y艒u)閬哥殑鍙冩暩(sh霉)锛屾车鐨勫嚭鍙ｅ嚭澹撳姏寰堥珮(涓�鑸湪20—25MPa)锛屼笖杓搁�佸惈鐮傞噺杓冮珮鐨勬偿婕�锛岄噰鐢ㄦ櫘閫氱殑娴侀噺瑷�(j矛)灏嶅叾娴侀噺閫�(j矛n)琛岀洿鎺ヨ▓(j矛)閲忓瓨鍦ㄥ叐鍊�(g猫)鍟忛;涓�鏄珮澹撳瘑灏佸晱椤岋紝浜屾槸娉ユ伎寰楁矇绌嶅拰鍫靛鍟忛銆傚洜姝ょ洿鎺ヨ▓(j矛)閲忚純鐐哄洶闆ｃ��
鏍规摎(j霉)寰�寰�(f霉)娉电殑宸ヤ綔鍘熺悊锛屽叾鍦ㄥ柈浣嶆檪(sh铆)闁撳収(n猫i)杓搁�佺殑娑查珨楂旂⿳(鏃㈡车鐨勭悊璜栧钩鍧囨祦閲廞鐞�)鑸囨车鐨勬椿濉炴埅闈㈢⿳S ..娲诲琛岀▼闀峰害1锛屼互鍙婃椿濉炴瘡鍒嗙ó鍦ㄧ几濂楃ó寰�寰�(f霉)鐨勬鏁�(sh霉)(绋变綔娉电殑娌栨暩(sh霉)鎴栨车鏁�(sh霉))n鏈夐棞(gu膩n)銆係鍜孖鏄车鐨勭祼(ji茅)妲�(g貌u)鍙冩暩(sh霉)锛屽皪浜庣郸瀹氱殑娉垫槸纰哄畾涓嶈畩鐨勯噺锛屽洜姝わ紝鑻ヨ兘娓噺鍑烘车鐨勬矕鏁�(sh霉)n 銆傚氨鍙▓(j矛)绠楀嚭娉电殑鍑哄彛娴侀噺銆�
涓婚瑭� 娴侀噺娓噺 娉ユ伎娴侀噺 寰�寰�(f霉)娉� 闁撴帴娓噺
1. 娉垫矕鏁�(sh霉)鐨勬脯閲�
鐢变簬寰�寰�(f霉)寮忔车鐨勬矕鏁�(sh霉)鑸囧叾椹�(q奴)鍕�(d貌ng)杌哥殑杞�(zhu菐n)閫熸垚姝ｆ瘮锛屽洜姝ゅ彲閫氶亷娓噺鍏堕﹨(q奴)鍕�(d貌ng)杌哥殑杞�(zhu菐n)閫熸彌绠楀嚭娉垫矕鏁�(sh霉)锛�
1.1杞�(zhu菐n)閫熷偝鎰熷櫒鐨勫伐浣滃師鐞�
娉甸﹨(q奴)鍕�(d貌ng)杌哥殑杞�(zhu菐n)閫熼噰鐢ㄩ湇鐖捐綁(zhu菐n)閫熷偝鎰熷櫒娓噺锛屽湒1鍜屽湒2鍒嗗垾鐐洪湇鐖捐綁(zhu菐n)閫熷偝鎰熷櫒鐨勭祼(ji茅)妲�(g貌u)鍘熺悊鍜屾帴绶氬湒銆�
鍌虫劅鍣ㄧ殑瀹氬瓙涓婃湁2鍊�(g猫)浜掔浉鍨傜洿鐨勯绲凙鍜孊锛屽湪绻炵祫鐨勪腑蹇冪窔涓婄矘鏈夐湇鐖剧墖Ha鍜孒b锛岃綁(zhu菐n)瀛愮偤姘镐箙纾侀嫾锛岄湇鐖惧厓浠禜a鍜孒b鐨勬縺鍕�(l矛)闆绘(j墨)鍒嗗垾鑸囩篂绲凙鍜孊鐩搁��锛屽畠鍊戠殑闇嶇埦闆绘サ涓茶伅(li谩n)鍚庝綔鐐哄偝鎰熷櫒鐨勮几鍑�銆�
涓嬮潰鎺ㄥ皫(d菐o)鍌虫劅鍣ㄨ几鍑虹殑闇嶇埦闆诲嫊(d貌ng)鍕㈢殑琛ㄩ仈(d谩)寮�銆傜暥(d膩ng)姘哥杞�(zhu菐n)瀛愯綁(zhu菐n)鍕�(d貌ng)鏅�(sh铆)锛屽湪杞�(zhu菐n)瀛愬拰瀹氬瓙鐨勬埃闅欎腑璁婂舰鎴愰毃鏅�(sh铆)闁撴寜姝ｅ鸡瑕�(gu墨)寰嬭畩鍖栫殑浜や究纾佸牬锛岃ō(sh猫)绌块亷闇嶇埦鍏冧欢Ha鐨勭閫氬瘑搴h 鐐�
鍥�?y脿n)妲擛绲凙鍦ㄧ┖闁撲笂甯跺悗 Ha90º锛屾晠绻炵祫A铏曠殑纾侀�氬瘑搴a 鐐鸿┎浜よ畩纾佸牬灏囧湪绻炵祫 A涓劅鎳�(y墨ng)鍑轰氦璁婇浕鍕�(d貌ng)鍕a鐢辨娆″畾寰嬭�孍a鍦℉a涓皣鐢�(ch菐n)鐢熶氦璁婃縺鍕�(l矛)闆绘簮;
鐢变簬闇嶇埦鍏冧欢H a鏈韩涔熻檿浜庣鍫翠腑锛屽叾闇嶇埦闆绘サ涓婂皣鐢�(ch菐n)鐢熼湇鐖鹃浕鍕�(d貌ng)鍕�;
寮忎腑;L1鐐虹篂绲凙鐨勯浕鎰�;R1 鐐虹篂绲凙鍜岄湇鐖惧厓浠禜a 绲勬垚鐨勫洖璺瓑鏁堥浕闃�;K1鐐洪湇鐖惧厓浠剁殑闈堟晱搴︼紝瀹冩槸鑸囬湇鐖惧厓浠剁殑鏉愭枡鍙婄祼(ji茅)妲�(g貌u)鏈夐棞(gu膩n)鐨勫弮鏁�(sh霉)銆�
椤炰技鍦�锛岀敱浜庨湇鐖惧厓浠禜b 鎵�鍑哄緱绌洪枔浣嶇疆瓒呭墠Ha90º锛岃�岀篂绲凚鍙堣秴鍓岺b90º锛屽悓鐞嗗彲鎺ㄥ嚭Hb鐢�(ch菐n)鐢熺殑闇嶇埦闆诲嫊(d貌ng)鍕hb鐐�
鏁呭偝鎰熷櫒绺界殑杓稿嚭闆诲嫊(d貌ng)鍕㈢偤
瀹冭垏琚脯杞�(zhu菐n)閫熸垚姝ｆ瘮銆�
1.2杞�(zhu菐n)閫熷偝鎰熷櫒鐨勭従(xi脿n)鍫村畨瑁�
鐐轰簡鐢ㄨ綁(zhu菐n)閫熷偝鎰熷櫒娓噺鍑烘车椹�(q奴)鍕�(d貌ng)杌哥殑杞�(zhu菐n)閫�锛屽彲鍦ㄦ车椹�(q奴)鍕�(d貌ng)杌镐笂瑁濅笂鐨付杓垨閺堣吉渚嗛﹨(q奴)鍕�(d貌ng)杞�(zhu菐n)閫熷偝鎰熷櫒鐨勮綁(zhu菐n)瀛愯綁(zhu菐n)鍕�(d貌ng)锛岄�欑ó瀹夎鏂瑰紡鏃㈢啊渚挎槗琛�锛屽張涓嶅奖闊挎车鐨勬甯稿伐浣溿��
寰�寰�(f霉)寮忔偿婕挎车鍑哄彛娴侀噺娓噺鏂规硶
2. 娉靛嚭鍙ｆ祦閲忕殑瑷�(j矛)绠�
娓嚭娉电殑娌栨暩(sh霉)n 鍚�锛屾棦鍙牴鎿�(j霉)寰�寰�(f霉)娉电殑绲�(ji茅)妲�(g貌u)鍜屼綔鐢ㄦ柟寮忚▓(j矛)绠楀叾鍑哄彛鐨勭悊璜栧钩鍧囨祦閲廞鐞� 銆�
灏嶄簬鍠几鍠綔鐢ㄦ车锛岀悊璜栧钩鍧囨祦閲忕偤
Q鐞� = Sln (m3/min )= Sln/60(m3/s )
寮忎腑;S鐐烘车鐨� 娲诲闈㈢⿳;l鐐烘椿濉炶绋嬮暦搴︺��
灏嶄簬澶氱几鍠綔鐢ㄦ车锛岃ō(sh猫)缂告暩(sh霉)浣峂锛屽墖鍏剁悊璜栧钩鍧囨祦閲忕偤
Q鐞� = MSln (m3/min )
灏嶄簬澶氱几闆欎綔鐢ㄦ车锛屾椿濉炲線寰�(f霉)涓�娆★紝鍚勬恫缂歌几閫佹恫楂斿叐娆�锛岄珨绌嶇偤(2S-S" )寮忎腑S"鐐烘椿濉炴】鎴潰绌�锛屽墖M鍚勭几鐨勭悊璜栧钩鍧囨祦閲忕偤
Q鐞�=M(2S-S")ln (m3/min )
鍦ㄥ(sh铆)闅涙脯閲忎腑鐧�(f膩)鐝�(xi脿n)锛屽線寰�(f霉)寮忔偿婕挎车宸ヤ綔鏅�(sh铆)锛岀敱浜庡惛鍏ラ枼鍜屾帓闄ら枼闂�(gu膩n)闁夌殑涓嶅強鏅�(sh铆)锛屾车闁�锛屾椿濉炲拰鍏朵粬铚滃皝鍑烘湁楂樺娑查珨闄嬪け;娉电几涓垨娑查珨鍏�(n猫i)鍚湁姘ｉ珨绛夊師鍥�锛屼娇娉电殑瀵�(sh铆)闅涘钩鍧囨祦閲廞瑕佷綆浜庣悊璜栧钩鍧囨祦閲忥紝鏃�
Q = aQ鐞�
a鐨勫ぇ灏忚娉电殑宸ヤ綔鎯呮硜锛屼竴鑸彇 0.85-0.95銆�
3. 绲�(ji茅)鏉熻獮
鏈枃鎻愬嚭鐨勯�氶亷娓噺娉电殑娌栨暩(sh霉)渚嗛枔鎺ユ脯閲忔车鐨勫嚭鍙ｆ祦閲忕殑鏂规硶锛岀啊鍠槗琛�锛岄伩鍏嶄簡鐩存帴娓噺涓偝鎰熷櫒鎵垮彈楂樺鍜屾恫楂旇厫铦曠殑鍟忛锛屼笖鎷嗚鏂逛究锛屾槗琛岀董璀�(h霉)锛屽(sh铆)闅涙脯閲忎腑鐧�(f膩)鐝�(xi脿n)锛岀暥(d膩ng)娉电殑鍏呮豢搴︿笉楂樻垨涓嶆亽瀹氭槸锛屾娉曠殑娓噺瑾ゅ樊灏囧澶�锛屽洜姝�锛岀暥(d膩ng)灏嶆脯閲忕簿纰鸿姹傞珮鏅�(sh铆)锛屽墖鎳�(y墨ng)鑰冪巼閲囩敤鍏朵粬闈炴帴瑙稿紡娓噺鏂规硶 銆� |
