ï»?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 烟台PLC,烟台PLC¾~–程,烟台触摸å±?烟台触摸屏编½E?烟台变频å™?烟台伺服,烟台直流调é€?烟台传感å™?烟台仪表,烟台控制æŸ?烟台电工,烟台甉|°”自动化系¾lŸå·¥½E?烟台瀚青甉|°”自动化有限公å?合信PLC,合信伺服,合信自动åŒ?/title> <meta name="keywords" content="烟台瀚青甉|°”自动化有限公å?烟台瀚青,瀚青甉|°”,烟台PLC,烟台触摸å±?烟台变频å™?烟台伺服,烟台¾l„态èÊYä»?烟台工控,烟台机器äº?烟台控制æŸ?烟台甉|°”自动åŒ?PLC,触摸å±?变频å™?伺服,¾l„态èÊYä»?机器äº?ytplc,plc, hmi, 控制æŸ?甉|°”自动åŒ?PLC¾~–程,成功案例,普传¿U‘技,POWTRAN,深圳变频å™?变频器厂å®Óž¼Œç‰¹ä­h变频å™?节能变频å™?低压变频å™?æ°´æ܇变频å™?机械用变频器,普传变频å™?风机用变频器,变频器代ç?变频器经销,变频器团è´?变频器厂å•?软启动器,伺服,制动单元,合信PLC,合信伺服,合信自动åŒ? /> <meta http-equiv="Content-Type" content="text/html; charset=gbk" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta name="description" content="About us page - download free business website template at TemplateMonster.com."/> <link href="style.css" rel="stylesheet" type="text/css" /> <link href="layout.css" rel="stylesheet" type="text/css" /> <script src="maxheight.js" 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class="nav-box"> <div class="left"> <div class="right"> <ul> <li><a href="index.html" class="first"><em><b>¾|‘站首页</b></em></a></li> <li><a href="about-us.html" ><em><b>公司介绍</b></em></a></li> <li><a href="solutions.html"><em><b>产品¾pÕdˆ—</b></em></a></li> <li><a href="partners.html" class="current"><em><b>行业应用</b></em></a></li> <li><a href="consulting.html"><em><b>新闻信息</b></em></a></li> <li><a href="contact-us.html" class="last"><em><b>联系我们</b></em></a></li> </ul> </div> </div> </div> <!-- nav box end --> </div> </div> </div> <!-- content --> <div id="content"> <div class="container"> <!-- main-banner-small begin --> <div class="main-banner-small"> <div class="inner"> <h1>专业PLC触摸屏编½E?</h1> </div> </div> <!-- main-banner-small end --> <div class="section"> <!-- box begin --> <div class="box"> <div class="border-top"> <div class="border-right"> <div class="border-bot"> <div class="border-left"> <div class="left-top-corner"> <div class="right-top-corner"> <div class="right-bot-corner"> <div class="left-bot-corner"> <div class="inner"> <h2>公司½Ž€ä»?/h2> 烟台瀚青甉|°”自动化有限公司是一家专注于工业自动化高¿U‘技控制¾pȝ»Ÿçš„设计、安装、调试及工业自动化äñ”品的生äñ”、代理、销售、传动电气äñ”品维修的高科技公司。公åæ€»¥ä¸“业的技术团队äؓ基础åQŒç»“合在工业自动化领域的深厚¿U¯ç¯åQŒä»¥å¿«é€Ÿå®žçŽ°å®¢æˆ·å®šåˆ¶åŒ–解决æ–ÒŽ¡ˆä¸ºç›®æ ‡ï¼Œå®žçŽ°ä¼ä¸šä»·å€¹{€å‘˜å·¥ä­hå€ég¸Žå®¢æˆ·ä»·å€¼çš„共同成长ã€? </div> </div> </div> </div> </div> </div> </div> </div> </div> </div> <!-- box end --> </div> <div class="section"> <!-- box begin --> <div class="box"> <div class="border-top"> <div class="border-right"> <div class="border-bot"> <div class="border-left"> <div class="left-top-corner"> <div class="right-top-corner"> <div class="right-bot-corner"> <div class="left-bot-corner"> <div class="inner"> <h2><a href="PLCanli.html"><em><b>PLC案例</b></em></a></h2> <h2><a href="partners.html"><em><b>变频器案åˆ?/b></em></a></h2> <DIV id=left> <H3 class=title><SPAN> 普传¿U‘技PI7800MF¾pÕdˆ—中频甉|ºåœ¨ç©ºå¿ƒæŠ½æ²ÒŽ†ç”µåŠ çƒ­é‡‡æ²¹è£…¾|®ä¸Šçš„应ç”?/SPAN></H3> <DIV class=webcontent> <DIV id=showproduct> <H1 align="center" class=title>普传¿U‘技PI7800MF¾pÕdˆ—中频甉|ºåœ¨ç©ºå¿ƒæŠ½æ²ÒŽ†ç”µåŠ çƒ­é‡‡æ²¹è£…¾|®ä¸Šçš„应ç”?/H1> <DIV style="CLEAR: both"></DIV> <P><p> 一、前­a€<br /> 在我国石油开采中åQŒç¨ æ²¹äº•çš„比例占相当大一部分åQŒè¿™¾cÖMº•åŽŸæÑa¾_˜åº¦é«˜ã€?凝固炚w«˜ã€å¯†åº¦å¤§ã€å«èœ¡é‡é«˜ï¼Œéš¾ä»¥å¼€é‡‡ã€‚目前国内外开采这¾cÀLÑa井的最òq¿æ³›,效果最å¥?的采油工艺技术是½E æÑa热采。采用空心杆电加热工艺技术,å¯ÒŽÑa½Ž¡å†…的原油进行全½E‹åŠ çƒ­ï¼Œä»¥é™ä½ŽåŽŸæ²¹ç²˜åº¦ï¼Œé˜²æ­¢æ²¹ç®¡å†…结蜡,提高原æÑa‹¹åŠ¨æ€§ã€‚有效的解决高凝、高¾_˜ã€é«˜å«èœ¡åŽŸæÑa开采过½E‹ä¸­é‡åˆ°çš„各¿UæŠ€æœ¯éš¾é¢˜ï¼Œè¾‘Öˆ°æ²¹äº•å¢žäñ”、增效的目的ã€?br /> 以前的空心杆加热技术,采用工频加热åQŒå› è´Ÿè²ä¸ºå•ç›¸ï¼Œéœ€è¦æœ‰ä¸€ä¸ªç‹¬ç«‹çš„ 变压器,ž®†ä¸‰ç›¸è¾“入变为单相输出,造成三相ç”늽‘的不òqŒ™¡¡åQŒåŠŸçŽ‡å› æ•îC½ŽåQŒç”µèƒ½æ¶ˆè€—大åQ?对电¾|‘的污染大,加热效果不明显,造成电能的极大浪贏V€‚因此,需要探讨一¿Uå…ˆ˜q›çš„ 加热方式åQŒä»¥æé«˜åŠŸæ•ˆåQŒå¢žå¼ºåŠ çƒ­æ•ˆæžœã€‚经˜q‡å¤šæ–¹è¯•éªŒï¼Œé‡‡ç”¨çŽ°å·²æŽŒæ¡çš„较成熟的变é¢?技术,ä¸ø™¯¥åŠ çƒ­è£…置提供一¿Uæ–°çš„变频电源—PI7800MF ¾pÕdˆ—中频加热甉|ºã€‚该讑֤‡å?提供 260—â€?500Hz 的频率,实现了输出电压、电‹¹çš„˜qžç®‹å¯è°ƒåQŒä»¥è¾‘Öˆ°è¾“出功率˜qžç®‹ 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½Iºå¿ƒæŠ½æÑa杆电加热装置在空心抽æ²ÒŽ†å†…下入加热电¾~†ï¼Œä½¿ç©ºå¿ƒæŠ½æ²ÒŽ†å’ŒåŠ çƒ­ç”µ¾~†ç»„成通电回èµ\åQŒåˆ©ç”¨é›†è‚¤æ•ˆåº”加热原理ä‹É原æÑa在井½{’内得到加热åQŒä»Žè€Œè“v到降¾_˜ã€æ¸…蜡作用。集肤效应,又叫­‘‹è‚¤æ•ˆåº”åQŒæ˜¯å½“交变电‹¹é€šè¿‡å¯ég½“æ—Óž¼Œç”‰|µä¼šèšé›†äºŽå¯ég½“表层åQŒè€Œéžòq›_‡åˆ†å¸ƒäºŽæ•´ä¸ªå¯¼ä½“的截面中,甉|µé›†ä¸­åœ¨å¯¼ä½“表面流˜q‡ï¼Œ˜q™ç§çŽ°è±¡å«é›†è‚¤æ•ˆåº”ã€?br /> 当钢½Ž¡ä¸­½I¿è¿‡ç”늼†å½¢æˆå›žèµ\òq‰™€šè¿‡äº¤æµç”‰|µæ—Óž¼Œé’¢ç®¡æˆªé¢ä¸­ç”µ‹¹ä¸»è¦é›†ä¸­åœ¨é’¢ç®¡å†…表面,此现象称为内集肤效应åQŒè€Œé’¢½Ž¡çš„外表面几乎没有电‹¹é€šè¿‡åQŒç©ºå¿ƒæ†å¤–壁可视为绝¾~˜ä½“åQŒè¿™¿UçŽ°è±¡ä¸ä»…随着频率的增高而明昑֊ å¼ºï¼Œè€Œä¸”˜q˜éšç€å¯ég½“半径、磁导率和电导率的增高而表现的更加显著。电加热抽æÑa杆就是利用内集肤效应工作的,ç”׃ºŽ½Iºå¿ƒæŠ½æÑa杆的交流é˜ÀLŠ—˜qœå¤§äºŽå¯¼¾U¿çš„电阻åQŒç©ºå¿ƒæŠ½æ²ÒŽ†ä¸ÞZ¸»è¦å‘热体ã€?br /> 三、PI7800MF¾pÕdˆ—中频甉|ºå·¥ä½œåŽŸç†å¦‚下图所½Cºï¼š </p> <img alt="" src="images/20130110172711_55643.jpg" /><br /> <p>   </p> <p>   </p> <p> ä¸È”µè·¯å›¾å¦‚下图所½Cºï¼š </p> <img alt="" src="images/20130110172742_83138.jpg" /><br /> <p>   </p> <p> <br /> 中频加热甉|ºä¸È”µè·¯äؓ AC-DC-AC 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7、控制电路采用电压、电‹¹åŒé—­çŽ¯¾pȝ»ŸåQŒåƈ 设有é˜ÀLŠ—调节器,逆变角调节器åQŒä‹É甉|ºçš„运行更 加稳定可靠ã€?br /> 8、输出电压、电‹¹è¿ž¾l­å¯è°ƒï¼Œå¯ä»¥ä½¿åŠ çƒ­ç³»¾lŸå¤„于最佛_·¥ä½œçŠ¶æ€ï¼Œèƒ½æºåˆ©ç”¨ 率高åQŒèŠ‚能效果明显恒输出电压/恒输出功率控刉™€‰æ‹©åŠŸèƒ½ã€?输出部分采用环形中频变压器åQŒç”¨äºŽéš”¼›»è¾“入、输出电压,同时¾lç”µå®¹ç»„与控 制柜输出相连接,起到隔直作用åQŒé˜²æ­¢ç”±äºŽç›´‹¹å¼‚æˆ–˜q‡åŠ±¼‚äñ”生的¼‚é¥±å’Œï¼ŒåŒæ—¶å¯è“v åˆîC¸²è”谐振的作用ã€?中频变压器äؓ非晶钛材料,导磁率高åQŒå·¥ä½œé¢‘率高åQŒè‡ª<br /> íw«èƒ½é‡æŸè€—极低,整机效率 提高。若频率再提高,其体¿U¯å¯åšå¾—更小åQŒå·¥ä½œæ•ˆçŽ‡æ›´é«˜ã€?br /> 9、保护功能齐全。设¾|®äº†˜q‡æµã€çŸ­è·¯ã€æœºå†…温升过高及˜q‡ã€æ¬ åŽ‹ä¿æŠ¤ï¼ŒåŠŸèƒ½æ›´é½å…¨ï¼Œå·¥ä½œæ›´å¯é ï¼Œé¿å…äº†ç”±äºŽå„¿Uä¸æ­£å¸¸å› ç´ è€Œé€ æˆçš„损坏ã€?br /> 10ã€?nbsp;高效节能åQŒå…¨åŠŸçŽ‡èŒƒå›´å†…,极高的功率因数和甉|ºæ•ˆçŽ‡<br /> 五、应用效æž?br /> 产品面市以来åQŒæ™®ä¼ ç§‘技在胜利æÑa田、辽æ²ÏxÑa田、青‹¹ähÑa田等几个½E æÑa井分布的区域内成åŠ?˜qç”¨äº†ä¸­é¢‘加热电源技术。通过 现场调整åQŒç»“合加热电¾~†åŠåŠŸçŽ‡ åQŒä¸€èˆ¬å°†é¢‘率调至 400Hz-1000Hz 左右åQŒæ¯”工频提高äº?10 几倍,æ ÒŽ®åŠŸçŽ‡è°ƒæ•´ç”‰|µåQŒä¸€èˆ?75kW 的电源输出电 ‹¹åœ¨ 80A 左右åQ?3kW 的电源在 100A 左右åQŒé€šè¿‡ä¸­é¢‘变压器,输出电压 800V 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六、频率与加热效果的关¾p?br /> 钢管在交‹¹ç”µä¸‹çš„é˜ÀLŠ—显著大于它的直流电阻。因为钢½Ž¡æ˜¯é“ç£è´¨ææ–™ï¼Œå®ƒçš„¼‚å¯¼çŽ‡è¦æ¯”é“œé«?000倍。集肤效应的强弱可以用集肤电‹¹é€å…¥é’¢ç®¡çš„深度S来表½Cºã€‚它与导体的电阻率Ï?相对¼‚å¯¼çŽ‡Îû|¼Œäº¤æµé¢‘率f有如下关¾p?</p> <img alt="" src="images/20130110174244_72089.jpg" /><br /> <p> <br /> 从式中可以看出,å¯ég½“材料¼‹®å®šåŽï¼Œç”µé˜»çŽ‡Ïå’Œç›¸å¯¹¼‚å¯¼çŽ‡Î¼å°±æ˜¯ä¸€ä¸ªå¸¸æ•ŽÍ¼Œä¿æŒä¸å˜åQŒè¦å¢žå¼ºé›†è‚¤æ•ˆåº”åQŒå°±å¿…需提高交流ç”늚„频率fåQŒf­‘Šé«˜åˆ™S­‘Šå°åQŒåˆ™é›†è‚¤æ•ˆåº”ž®Þp¶Šå¼ºã€?br /> 同样åQŒé’¢½Ž¡é˜»æŠ—Z的大ž®ä¸Žé¢‘率f的关¾pÖMؓåQ?</p> <p> <img alt="" src="images/20130110174245_65852.jpg" /><br /> 从式中可以看出,f­‘Šé«˜åˆ™é’¢½Ž¡é˜»æŠ—å°±­‘Šå¤§ã€?</p> <p> <br /> ž®†ç”µæºã€ç”µæºå†…é˜Õd’Œè´Ÿè²é’¢ç®¡çœ‹æˆä¸€ä¸ªç­‰æ•ˆç”µè·¯ã€?</p> <p> <img alt="" src="images/20130110174246_20724.jpg" /><br /> U—交‹¹ç”µæº?r—电源内é˜?Z—负载阻æŠ?</p> <p>   </p> <img alt="" src="images/20130110174246_68979.jpg" /> <p> 随着甉|µé¢‘率的升高,½Iºå¿ƒæŠ½æÑa杆阻抗Z也随之增大,当Z˜qœè¿œå¤§äºŽræ—Óž¼ŒPZ的大ž®è¿‘ä¼égºŽP。根据能量守恒的原理åQŒåœ¨ç›¸åŒè¾“入功率下,甉|ºé¢‘率­‘Šé«˜åQŒé›†è‚¤æ•ˆåº”越强烈åQŒåˆ™½Iºå¿ƒæŠ½æÑa杆阻抗也­‘Šå¤§åQŒå…¶èŽ·å¾—的有效电功率­‘Šå°±­‘Šå¤§åQŒä‹É甉|ºè‡ªæŸé™ä½Žåˆ°æœ€ä½Žé™åº¦ï¼Œä»Žè€ŒèŠ‚¾U¦äº†å¤§é‡çš„电能,òq¶èŽ·å¾—了良好的加热效果ã€?br /> 七、参数设å®?br /> F03=1 F04=0 F05=1 F08=32 F09=40 F10=40 F12=90 F13=1500  F17=1500 F27=1 F28=50 F29=50 F43=1 F61=8 F63=4 P02=2  Y12=1<br /> 八、结束语<br /> ½Iºå¿ƒæ†ç”µåŠ çƒ­è£…置中,ç”늃­æ†äñ”生的热量òq¶ä¸æ˜¯ä¸€æˆä¸å˜çš„åQŒè¶Šé è¿‘地面åQŒå•ä½é•¿åº¦äñ”生的热量­‘Šå¤šåQŒè¶Šå‘下单位长度产生的热量越ž®‘。原油在提升的过½E‹ä¸­åQŒåœ°å±‚温度逐渐降低åQŒåˆ©ç”¨ç”µçƒ­æ†åŠ çƒ­åŠŸçŽ‡å’Œåœ°å±‚温度的变化机理åQŒå¯ä»¥ç”¨è¾ƒå°çš„功率ä‹É井筒内原油保持一定的温度。由于电源频率越高,寄生电容截取的电‹¹è¶Šå¤§ï¼Œæ‰€ä»¥åœ¨ç›¸åŒçš„井冉|¡ä»¶ä¸‹åQŒä¸­é¢‘电加热装置采用较小的加热功率就会取得良好的加热效果åQŒè¯•éªŒç»“果表明,中频加热与工频加热对比,在井口原æ²ÒŽ¸©åº¦ç›¸åŒçš„情况下,加热功率òq›_‡ä½?0~20KWåQŒèŠ‚ç”늎‡åœ?5%以上ã€?</p> <br /> <br /></P> <P></P> <h2><a href="PLCanli.html"><em><b>PLC案例</b></em></a></h2> <h2><a 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