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zhaiyao:lashiredongliyuanjianshiyishilazuoweiremincailiao,tajuyoujiegoujiandan、dongzuokekao、wendukongzhijingdujiaogao、wuxuwaibunengyuandengyoudian,zaiwendukongzhifa(thermostatic valve)zhongdedaoguangfandeyingyong。gaiwenchanshuleguanjianyuanjian——lashiredongliyuanjianderelixuemoxing,tantaolezaizhengqishushuifazhongyingyongdekenengxing,bingjinxingleshiyanyanzhengyufenxi。shiyanbiaoming:lashiredongliyuanjianzaizhengqishushuifadeshiyongtiaojianxia,yunxingwending、kekao,danshibushiheyugaowenchanghe。

關鍵詞熱動力元件數學模型感溫蠟蒸汽疏水閥

1 前言

在能源日趨緊張的形勢下,節能已成為我國發展國民經濟的一條重要方針。蒸汽作為重要的二次能源,被廣泛地應用在各種行業中,蒸汽疏水閥是保障蒸汽系統(加熱設備或蒸汽管網)正常工作、凝結水回收利用、節約能源的重要自力式控制類閥門。在石油化工、能源動力(熱電、核電)、印染紡織、造紙、船舶、制藥、冶金、食品、供熱等行業得到廣泛應用。蒸汽疏水閥中,屬于自力式溫度控制閥的熱靜力式蒸汽疏水閥由于其可以有一定過冷度,節能效果好而得到重視。

lashiredongliyuanjianshixinxingqideyizhonggaoxiaozilishiwendukongzhifadehexinbujian,takeyitongshimanzuweiweiyiyudaqudonglideyaoqiu,qiejuyoujiegoujiandan、dongzuokekao、wendukongzhijingdujiaogaodengyoudianerbeiguangfanshiyong。tagenjugutiheyetibukeyasuoheliyongmifengrongqineigongzuojiezhi(ganwenlayujinshutongfendehunhewu)detijisuiwendubianhuaerbianhuadewulixingzhiergongzuo,tigonglashiredongliyuanjianzaipengzhangfangxiangshangdequdongli。guoqulashiredongliyuanjianzhuyaoyongyu 20℃~90℃ dehengwenfa、jiewenqidengchanpin,youyuneichongjiezhiganwenlaxiangbianwenduyijifuxiangjiaonangxiang(huohenggemo)naiwen,doukezai 100℃~180℃,suoyilashiredongliyuanjianyoukenengyingyongyurejinglishizhengqishushuifayibangaoyu 100℃ dechanghe。

benwenduilashiredongliyuanjiandeyuanli、xingnengjinxingtaolun,duizaizhengqishushuifazhongdeyingyongkenengjinxingletantao,bingtongguoshuxuemoxingjishiyanjiayilunzheng。

1 蠟式熱動力元件工作原理、性能特點

lashiredongliyuanjianshiyizhongzilishiwendudiaojiezhuangzhi,qijibenjiegourutu l suoshi。

蠟式熱動力元件示意圖(圖 1)
圖 1 蠟式熱動力元件

zhuyaoyouhuosai、jiaonangxiangjiaoti(huohenggemo)、mifengrongqi、ganwenlazucheng。ganwenlabeimifengzaitongzhaohexiangjiaotaozhijian,dangliutihuozhengqitongguolashiredongliyuanjianshi,lashiredongliyuanjianshoure(yuleng)→reliangtongguogangxingzitongmifengrongqiwaibishibeineishilashoureronghua(lengning)tijipengzhang(shousuo)→tuidongjiaonangxiangjiaoti(huohenggemo)→tuidonghuosai→daidongdiaojietaotongdeyundong,congerwanchengzhuangzhisuoyaoqiudemude。tuiganxingchengdedaxiaoshilashiredongliyuanjiandezhuyaoxingnengzhibiao。tongyiwenduxia,zaiheyueda,xingchengyuexiao。duiyuyiquedingdelayuanjianhewaizaihe,lashiredongliyuanjiandetexingshigudingbubiande。weilezhizaodebiaozhunhuahexiliehua,kejianglashiredongliyuanjianshejiweibiaozhunxingshi,zaixuyaodelilianghexingchengjiaodashi,kexuanyongmifengrongqirongjijiaodade,fanzhikexuanyongrongjijiaoxiaode。zheyangkeshilashiredongliyuanjianshiyongyubutongdetiaojianxiahezhuangzhizhong,yeduilashiredongliyuanjiandetuiguangqidaolehendadecujinzuoyong。zailashiredongliyuanjianzhong,tuiganyudanxingtaotongzhijiandemocaduilayuanjiandegongzuoshoumingqizhujuedingxingdezuoyong,yincizaishejizhizaolashiredongliyuanjianshiyingjinkenengdejiangdituiganhedanxingtaotongmocafubiaomiandecucaodu,jianxiaomocali。

lashiredongliyuanjianshiyizhongwenduminganxingyuanjian,butongdeshejiedingwendujiuyaoshiyongxiangyingpengzhangxingnengdeganwenla,laderepengzhangxingzhijieyingxiangredongliyuanjiandekongwenxingneng,yinciduiganwenladeyanjiujiuxiandefeichangzhongyao。ganwenyuanjiandeguanjianbujianshishilacailiaohexiangjiaotao,weileshishilazaigediannengzuidaxiandudijunyunpengzhang,zaishilazhongchanyoujinshufenmo,wangshilalitianjiajinshufenmolaitigaoqidaorexing,erjinshufenmodetianjiafangshiduishilafuhecailiaodepengzhanglvyeyouyidingyingxiang,danbuhuigaibianshilafuhecailiaodepengzhangtexing。

3 蒸汽疏水閥蠟式熱動力元件實驗研究

shiyanzhuangzhijishiyanyuanli

weilegenghaodeshuominglashiredongliyuanjiandetexing,hezaizhengqishushuifazhongyingyongdekenengxing,xianduidingzhiyangjianjinxingshiyanyanjiu。jianyideshiyanzhuangzhirutu 2 suoshi。

簡易實驗裝置簡圖(圖 2)
圖 2 簡易實驗裝置簡圖(1.千分尺 2.彈簧 3.導桿 4.蠟式熱動力元件 5.恒溫油(水)浴)

zhuyaoyouyixiajibufenzucheng:zhuanyongjiaju、qianfenchi、yasuodanhuang、daoxiangtaotong、hengwenyouyu,qizhong:caiyonghengwenyouyukongzhiwendumonizhengqishushuifazhongyibangaoyu 100℃ dejiezhiwendu。yasuodanhuangyonglaimonishushuifazhongzuoyongyuredongliyuanjiandeningjieshui(zhengqi)dejiezhiyalihefuweidanhuangli,diaojiedanhuangyasuolianghuogenghuanbutonggangdudedanhuangkeyimonibutongdegongchengtongjingshushuifadejiezhiyali,jiajumonishushuifafatilaigudingredongliyuanjian。lashiredongliyuanjiandeshenchangliangfanyingzaishiyanjiajudeqianfenchishang。

4 結論

(l)lashiredongliyuanjianderelishuxuemoxingdejianliyushiyanxianshi:jingliushilatijisuiwendudebianhuazaixiangbianquchengxianxingguanxi,qiexianxingxielvjiaoda,youliyushixianwendudediaojie;

(2)ganwenlaxiangbianshijuyouhendadepengzhanglianghequdongli,yijibukeyasuoxing,zaigangxingketineizuoweiganwencailiaozhizuolashiredonglishushuifaxianshichuhengaodeyingyongjiazhi;

(3)youyulashiredongliyuanjianneijiandexianzhi,zuoweizhengqishushuifadeganwenyuanjian,qishiyongwendufanweiyouxian,shiheyongyuyouyidingguolengdudechanghe,bunengyongyugaowenhuanjing。


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下一篇:疏水閥原理和結構形式
上一篇:蒸汽疏水閥選型在苯酐裝置節能優化中的應用


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