SELECT pctemplate,waptemplate,pchtmlpath,waphtmlpath,sitekeys,sitedesc,siteurl,sitewapurl FROM zzz_language WHERE l_alias='ch' LIMIT 1,步时:22.22毫秒
select * from zzz_sort where sid=(select c_sid from zzz_content where cid=103),步时:9.04毫秒
SELECT sid,s_name,s_pic,s_type,s_enname,s_url,s_filename FROM zzz_sort WHERE (`sid`=5 OR `sid`=15 OR `sid`=32) LIMIT 0,10,步时:0.36毫秒
SELECT * FROM zzz_language WHERE l_onoff=1 LIMIT 1,步时:88.98毫秒
SELECT * FROM zzz_content c,zzz_sort s WHERE `cid`=103 AND `sid`= c_sid LIMIT 1,步时:2.70毫秒
UPDATE zzz_content SET `c_visits`=c_visits+1 WHERE cid=103,步时:13.70毫秒
SELECT cid,c_title,c_type,c_pic,c_pagename,c_link FROM zzz_content WHERE c_onoff=1 and CID<103 and C_sid=32 ORDER BY cid desc LIMIT 1,步时:14.55毫秒
SELECT cid,c_title,c_type,c_pic,c_pagename,c_link FROM zzz_content WHERE c_onoff=1 and CID>103 and C_sid=32 ORDER BY cid asc LIMIT 1,步时:0.83毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=1) LIMIT 0,1000,步时:2.87毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=17) LIMIT 0,1000,步时:1.98毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=18) LIMIT 0,1000,步时:2.03毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=2) LIMIT 0,1000,步时:2.20毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=40) LIMIT 0,1000,步时:1.75毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=41) LIMIT 0,1000,步时:1.72毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=43) LIMIT 0,1000,步时:1.72毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=44) LIMIT 0,1000,步时:2.15毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=47) LIMIT 0,1000,步时:1.64毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=48) LIMIT 0,1000,步时:0.28毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=3) LIMIT 0,1000,步时:1.61毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=19) LIMIT 0,1000,步时:1.56毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=42) LIMIT 0,1000,步时:1.55毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=45) LIMIT 0,1000,步时:1.60毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=46) LIMIT 0,1000,步时:1.55毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=49) LIMIT 0,1000,步时:1.63毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=4) LIMIT 0,1000,步时:1.55毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=10) LIMIT 0,1000,步时:3.16毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=11) LIMIT 0,1000,步时:3.48毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=76) LIMIT 0,1000,步时:3.46毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=12) LIMIT 0,1000,步时:3.36毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=13) LIMIT 0,1000,步时:5.01毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=5) LIMIT 0,1000,步时:3.52毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=14) LIMIT 0,1000,步时:1.84毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=15) LIMIT 0,1000,步时:1.53毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=16) LIMIT 0,1000,步时:1.44毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=6) LIMIT 0,1000,步时:0.23毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=7) LIMIT 0,1000,步时:1.43毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=8) LIMIT 0,1000,步时:1.44毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=9) LIMIT 0,1000,步时:0.23毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=2) LIMIT 0,1000,步时:0.22毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=5) LIMIT 0,1000,步时:1.51毫秒
SELECT * FROM zzz_sort WHERE `s_onoff`=1 AND (`sid`=4) LIMIT 0,1000,步时:1.50毫秒
select sid from zzz_sort where s_onoff=1 and (s_path like '%,3,%' or s_path like '3,%' or s_path like '%,3' ),步时:3.21毫秒
SELECT c.*,s.s_filename,s.s_url,s.s_name,s.s_enname FROM zzz_content c,zzz_sort s WHERE `c_onoff`=1 AND `sid`= c_sid AND (`c_sid`=3 OR `c_sid`=19 OR `c_sid`=42 OR `c_sid`=45 OR `c_sid`=46 OR `c_sid`=48 OR `c_sid`=49) ORDER BY `istop` DESC ,`isgood` DESC ,`c_order` ASC ,`c_addtime` DESC ,`cid` DESC LIMIT 0,20,步时:2.65毫秒
select sid from zzz_sort where s_onoff=1 and (s_path like '%,10,%' or s_path like '10,%' or s_path like '%,10' ),步时:1.66毫秒
SELECT c.*,s.s_filename,s.s_url,s.s_name,s.s_enname FROM zzz_content c,zzz_sort s WHERE `c_onoff`=1 AND `sid`= c_sid AND (`c_sid`=10) ORDER BY `istop` DESC ,`isgood` DESC ,`c_order` ASC ,`c_addtime` DESC ,`cid` DESC LIMIT 0,20,步时:1.03毫秒
select sid from zzz_sort where s_onoff=1 and (s_path like '%,11,%' or s_path like '11,%' or s_path like '%,11' ),步时:2.06毫秒
SELECT c.*,s.s_filename,s.s_url,s.s_name,s.s_enname FROM zzz_content c,zzz_sort s WHERE `c_onoff`=1 AND `sid`= c_sid AND (`c_sid`=11) ORDER BY `istop` DESC ,`isgood` DESC ,`c_order` ASC ,`c_addtime` DESC ,`cid` DESC LIMIT 0,20,步时:0.67毫秒
化工领域锅炉是化工生产过程中经常使用的重要设备。它产生的蒸汽是石化企业不可缺少的热源和动力源。化工厂蒸汽主要来自自备电厂锅炉或园区集中供热站,其次来自余热回收系统或废气焚烧系统。随着国家新的大气污染排放标准的颁布,各厂10t/h以下的燃煤锅炉将全部取消,由集中供热和长距离供热管道取代。因此,低氮和接近零排放的集中供热将形成清洁能源的趋势。
锅炉的选择和采购应根据化工企业的特点确定。一般来说,在常温常压下反应的化工企业不需要锅炉。相反,他们需要锅炉来加压或加热。石油化工等有机化工行业都需要锅炉,而酸、碱、盐化工等无机化工行业需要相对较少的锅炉。
例如,一家化工企业和我们联合建立了一个与聚酯装置同步的循环流化床锅炉和汽轮发电机组的自备电站,主要用于PTA装置和聚酯装置的能耗。精对苯二甲酸加热:一次换热器的加热蒸汽由50MW汽轮机的6.1MPa和435℃抽汽减温后提供。聚酯用热:一级换热器的加热蒸汽经锅炉超高压高温新鲜蒸汽14MPa和540℃减温减压后供应。
熙柏科蒸汽锅炉适用于的行业包括化肥厂、化工厂、炼油厂、油漆厂、橡胶厂等。生产的多种型号锅炉自动化程度高,可为工业生产提供恒压蒸汽。