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╃敤杞夐�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祦閲忕殑瑷堢畻寮忋��
閴嗕簳鐢ㄧ殑寰�寰╁紡娉ユ伎娉�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�侀墕浜曟偿婕匡紝灏囬墕浜曢亷绋嬩腑閴嗛牠鐮寸鐨勫窎灞戝緸浜曞簳鏀滃付鍑轰締骞剁偤浜曚笅鍕曞姏鍕曞姏閴嗗叿鎻愪緵鍕曞姏銆傛车鐨勫嚭鍙ｆ祦閲忔槸褰遍熆閴嗕簳鏁堢巼鐨勪竴鍊嬮噸瑕佸弮鏁�(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櫘閫氱殑娴侀噺瑷堝皪鍏舵祦閲忛�茶鐩存帴瑷堥噺瀛樺湪鍏╁�嬪晱椤�;涓�鏄珮澹撳瘑灏佸晱椤�锛屼簩鏄偿婕垮緱娌夌⿳鍜屽牭濉炲晱椤屻�傚洜姝ょ洿鎺ヨ▓閲忚純鐐哄洶闆�銆�
鏍规摎(j霉)寰�寰╂车鐨勫伐浣滃師鐞嗭紝鍏跺湪鍠綅鏅傞枔鍏ц几閫佺殑娑查珨楂旂⿳(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╃殑娆℃暩(sh霉)(绋变綔娉电殑娌栨暩(sh霉)鎴栨车鏁�(sh霉))n鏈夐棞銆係鍜孖鏄车鐨勭祼妲嬪弮鏁�(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▓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╂车 闁撴帴娓噺
1. 娉垫矕鏁�(sh霉)鐨勬脯閲�
鐢变簬寰�寰╁紡娉电殑娌栨暩(sh霉)鑸囧叾椹呭嫊杌哥殑杞夐�熸垚姝ｆ瘮锛屽洜姝ゅ彲閫氶亷娓噺鍏堕﹨鍕曡桓鐨勮綁閫熸彌绠楀嚭娉垫矕鏁�(sh霉)锛�
1.1杞夐�熷偝鎰熷櫒鐨勫伐浣滃師鐞�
娉甸﹨鍕曡桓鐨勮綁閫熼噰鐢ㄩ湇鐖捐綁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閫熷偝鎰熷櫒鐨勭祼妲嬪師鐞嗗拰鎺ョ窔鍦�銆�
鍌虫劅鍣ㄧ殑瀹氬瓙涓婃湁2鍊嬩簰鐩稿瀭鐩寸殑楗掔祫A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鐨勬縺鍕甸浕姗熷垎鍒ヨ垏绻炵祫A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恒��
涓嬮潰鎺ㄥ皫鍌虫劅鍣ㄨ几鍑虹殑闇嶇埦闆诲嫊鍕㈢殑琛ㄩ仈寮�銆傜暥姘哥杞夊瓙杞夊嫊鏅�锛屽湪杞夊瓙鍜屽畾瀛愮殑姘ｉ殭涓畩褰㈡垚闅ㄦ檪闁撴寜姝ｅ鸡瑕�(gu墨)寰嬭畩鍖栫殑浜や究纾佸牬锛岃ō绌块亷闇嶇埦鍏冧欢Ha鐨勭閫氬瘑搴h 鐐�
鍥犵偤绻炵祫A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涓劅鎳夊嚭浜よ畩闆诲嫊鍕a鐢辨娆″畾寰嬭�孍a鍦℉a涓皣鐢㈢敓浜よ畩婵�鍕甸浕婧�;
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㈢敓闇嶇埦闆诲嫊鍕�;
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妲嬫湁闂滅殑鍙冩暩(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㈢敓鐨勯湇鐖鹃浕鍕曞嫝Ehb鐐�
鏁呭偝鎰熷櫒绺界殑杓稿嚭闆诲嫊鍕㈢偤
瀹冭垏琚脯杞夐�熸垚姝ｆ瘮銆�
1.2杞夐�熷偝鎰熷櫒鐨勭従(xi脿n)鍫村畨瑁�
鐐轰簡鐢ㄨ綁閫熷偝鎰熷櫒娓噺鍑烘车椹呭嫊杌哥殑杞夐��锛屽彲鍦ㄦ车椹呭嫊杌镐笂瑁濅笂鐨付杓垨閺堣吉渚嗛﹨鍕曡綁閫熷偝鎰熷櫒鐨勮綁瀛愯綁鍕�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�銆�
寰�寰╁紡娉ユ伎娉靛嚭鍙ｆ祦閲忔脯閲忔柟娉�
2. 娉靛嚭鍙ｆ祦閲忕殑瑷堢畻
娓嚭娉电殑娌栨暩(sh霉)n 鍚�锛屾棦鍙牴鎿�(j霉)寰�寰╂车鐨勭祼妲嬪拰浣滅敤鏂瑰紡瑷堢畻鍏跺嚭鍙ｇ殑鐞嗚珫骞冲潎娴侀噺Q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╀竴娆★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闅涙脯閲忎腑鐧�(f膩)鐝�(xi脿n)锛屽線寰╁紡娉ユ伎娉靛伐浣滄檪锛岀敱浜庡惛鍏ラ枼鍜屾帓闄ら枼闂滈枆鐨勪笉鍙婃檪锛屾车闁ワ紝娲诲鍜屽叾浠栬湝灏佸嚭鏈夐珮澹撴恫楂旈檵澶�;娉电几涓垨娑查珨鍏у惈鏈夋埃楂旂瓑鍘熷洜锛屼娇娉电殑瀵﹂殯骞冲潎娴侀噺Q瑕佷綆浜庣悊璜栧钩鍧囨祦閲�锛屾棦
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. 绲愭潫瑾�
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岋紝閬垮厤浜嗙洿鎺ユ脯閲忎腑鍌虫劅鍣ㄦ壙鍙楅珮澹撳拰娑查珨鑵愯潟鐨勫晱椤�锛屼笖鎷嗚鏂逛究锛屾槗琛岀董璀�锛屽闅涙脯閲忎腑鐧�(f膩)鐝�(xi脿n)锛岀暥娉电殑鍏呮豢搴︿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�锛岀暥灏嶆脯閲忕簿纰鸿姹傞珮鏅傦紝鍓囨噳鑰冪巼閲囩敤鍏朵粬闈炴帴瑙稿紡娓噺鏂规硶 銆� |
