蘇州干冰制冷劑廠家上海冰仆冷暖設(shè)備供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="目前我國空調(diào)行業(yè)使用較多的制冷劑是HCFC物質(zhì)R22。R290與R22的標(biāo)準(zhǔn)沸點(diǎn)、凝固點(diǎn)、臨界點(diǎn)等基本物理性質(zhì)非常接近，具備替代R22的基本條件。在飽和液態(tài)時，R290的密度比R22小，因此相同容積下R290的灌注量更小，試驗(yàn)證明相同系統(tǒng)體"><meta name="keywords" content="蘇州干冰制冷劑廠家,制冷劑"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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id="fmavp8t" class="proBig"><div id="vmq3x3s" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016639536523/2139311.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="tv3jbm3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401016639536523/2139311.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fqxnid8" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>蘇州干冰制冷劑廠家,制冷劑</p><p><span>***更新：</span>2020-12-29 03:21:44</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="grcw3sv" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海冰仆冷暖設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>徐佳華</p><p><span>郵箱: </span>444054147@qq.com</p><p><span>電話: </span>13761656620</p><p><span>傳真: </span>1_1</p><p><span>網(wǎng)址: </span>https://www.shbpln.com</p><p><span>手機(jī): </span>1-1</p><p><span>地址: </span>美丹路222號629室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="c3c8l0j" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vxsdcb3" class="box"><p><p style="text-indent:25px">目前我國空調(diào)行業(yè)使用較多的制冷劑是HCFC物質(zhì)R22。R290與R22的標(biāo)準(zhǔn)沸點(diǎn)、凝固點(diǎn)、臨界點(diǎn)等基本物理性質(zhì)非常接近，具備替代R22的基本條件。在飽和液態(tài)時，R290的密度比R22小，因此相同容積下R290的灌注量更小，試驗(yàn)證明相同系統(tǒng)體積下R290的灌注量是R22的43%左右。另外，由于R290的汽化潛熱大約是R22的2倍左右，因此采用R290的制冷系統(tǒng)制冷劑循環(huán)量更小。R290具有良好的材料相容性，與銅、鋼、鑄鐵、潤滑油等均能良好相容，蘇州干冰制冷劑廠家。未來我國還將進(jìn)一步加大使用R290制冷劑的空調(diào)產(chǎn)線改造示范試點(diǎn)力度，蘇州干冰制冷劑廠家。隨著對R290應(yīng)用技術(shù)研究的不斷深入、使用經(jīng)驗(yàn)的不斷積累，蘇州干冰制冷劑廠家，環(huán)保型制冷劑R290未來將擁有廣闊的市場應(yīng)用前景。制冷劑是一種在制冷系統(tǒng)中不斷循環(huán)并通過其本身的狀態(tài)變化以實(shí)現(xiàn)制冷的工作物質(zhì)。蘇州干冰制冷劑廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州干冰制冷劑廠家,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016639536523/2139311.png"></div><p style="text-indent:25px">制冷劑需有良好的電氣絕緣性。經(jīng)濟(jì)性，要求工質(zhì)低廉，易于獲得。環(huán)保性，要求工質(zhì)的臭氧消耗潛能值（ODP）與全球變暖潛能值（GWP）盡可能小，以減小對大氣臭氧層的破壞及引起全球氣候變暖。共沸制冷劑：由兩種或兩種以上的制冷劑按一定的比例混合而成，在氣化或液化過程中，蒸汽成分與溶液成分始終保持相同；在既定壓力下，發(fā)生相變時對應(yīng)的溫度保持不變。非共沸制冷劑：由兩種或兩種以上的制冷劑按一定的比例混合而成。在定壓下氣化或液化過程中，蒸汽成分與溶液成分不斷變化，對應(yīng)的溫度也不斷變化。杭州巨化制冷劑費(fèi)用制冷劑在蒸發(fā)器內(nèi)吸收被冷卻介質(zhì)（水或空氣等）的熱量而汽化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州干冰制冷劑廠家,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016679253334/4302164.png"></div><p style="text-indent:25px">制冷劑飽和蒸氣的溫度與壓力呈對應(yīng)關(guān)系，若已知制冷劑的蒸發(fā)溫度即可查出相對應(yīng)的蒸發(fā)壓力。此壓力的表壓值由高、低壓壓力表顯示出來。因此，根據(jù)安裝在系統(tǒng)上壓力表的壓力值即可判斷制冷劑的充注量是否宜適。例如：空調(diào)器的蒸發(fā)溫度為7.2℃，冷凝溫度為54.5℃使用R22。查R22的飽和溫度與飽和壓力對應(yīng)表，以確定其蒸發(fā)壓力值和冷凝壓力值。查表可知：R22在7.2℃時相應(yīng)相對壓力值為0.53Mpa(5.3kg/cm2)和54.5℃時的相應(yīng)相對壓力值為2.11Mpa(21.1kg/cm2)，將此壓力換算為表壓值即可。用高、低壓壓力表或復(fù)合式壓力表測試充氟中的制冷系統(tǒng)，若高、低壓力表表壓值符合上述范圍即表明制冷劑的充注量合適;若高、低壓壓力均低則表明充入量不夠;若高、低壓壓力均高，則表明充入量過多。壓力測定法較為簡便，在維修時經(jīng)常作用，但是缺點(diǎn)是比較粗，準(zhǔn)確度不高。</p><p style="text-indent:25px">通常按照制冷劑的標(biāo)準(zhǔn)蒸發(fā)溫度，又分為高、中、低溫三類。標(biāo)準(zhǔn)蒸發(fā)溫度是指標(biāo)準(zhǔn)大氣壓力下的蒸發(fā)溫度，也就是沸點(diǎn)。（1）高溫（低壓）：標(biāo)準(zhǔn)蒸發(fā)溫度（tS）>0℃,冷凝壓力(PC)≦0.2～0.3Mpa,常用的R123等。（2）中溫（中壓）：0℃>tS>-60℃，0.3Mpa<2.0Mpa,常用的有氨，R12,R22,R134a,丙烷等。（3）低溫（高壓）：tS≦-60℃，常用的有R13，乙烯,R744(CO2)等。編號，命各標(biāo)示方法;按照國際統(tǒng)一規(guī)定用字母“R”表示制冷劑，加上后面的數(shù)字和字母組成在GB7778-1987中做了明確規(guī)定。無機(jī)化合物。規(guī)定為R700加上無機(jī)化合物的相對分子質(zhì)量的整數(shù)部分組成，NH3(氨)H2O（水）CO2（二氧化碳）分子量171844；編號R717R718R744。碳?xì)渲评鋭┲饕枪?jié)能和環(huán)保這兩大優(yōu)點(diǎn)；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蘇州干冰制冷劑廠家,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016725513045/6297146.png"></div><p style="text-indent:25px">制冷劑性質(zhì)要求：（1）具有優(yōu)良的熱力學(xué)特性，以便能在給定的溫度區(qū)域內(nèi)運(yùn)行時有較高的循環(huán)效率。具體要求為：臨界溫度高于冷凝溫度、與冷凝溫度對應(yīng)的飽和壓力不要太高、標(biāo)準(zhǔn)沸點(diǎn)較低、流體比熱容小、制冷劑絕熱指數(shù)低、單位容積制熱量較大等。（2）具有優(yōu)良的熱物理性能具體要求為：較高的傳熱系數(shù)、較低的粘度及較小的密度。（3）具有良好的化學(xué)穩(wěn)定性要求工質(zhì)在高溫下具有良好的化學(xué)穩(wěn)定性，保證在較高工作溫度下工質(zhì)不發(fā)生分解。（4）與潤滑油有良好互溶性。（5）安全性工質(zhì)應(yīng)無毒、無刺激性、無燃燒性及爆炸性。制冷劑，又稱制冷工質(zhì)。杭州巨化制冷劑費(fèi)用</p><p style="text-indent:25px">R410A制冷劑無色氣體，貯存在鋼瓶內(nèi)是被壓縮的液化氣體。蘇州干冰制冷劑廠家</p><p style="text-indent:25px">C02應(yīng)用研究的一個重要領(lǐng)域是熱泵熱水器（HPWH）。C02跨臨界循環(huán)中氣體冷卻器所具有的較高的排氣溫度，較大的溫度滑移和冷卻介質(zhì)的溫升過程相匹配，使其在熱泵循環(huán)方面具有獨(dú)特的優(yōu)勢。通過調(diào)整循環(huán)的排氣壓力，可使氣體冷卻器的排熱過程較好適應(yīng)外部熱源的溫度和溫升需要。研究結(jié)果表明，當(dāng)用環(huán)境空氣作熱源，0℃環(huán)境進(jìn)水溫度8℃，熱水出水溫度為60℃時，該系統(tǒng)COP值高達(dá)4.3.一個更大優(yōu)點(diǎn)是毫無困難的產(chǎn)出90℃的熱水COP值仍較高。而普通的熱泵熱水器限制產(chǎn)水溫度在55℃以下。因而C02熱泵系統(tǒng)可較好的滿足采暖，空調(diào)和生活熱水的加熱要求。C02作為制冷工質(zhì)在熱泵中的應(yīng)用將有效的解決空調(diào)冷熱源面臨的資源與環(huán)境壓力，應(yīng)用前景良好。蘇州干冰制冷劑廠家</p><p style="text-indent:25px">上海冰仆冷暖設(shè)備有限公司致力于化工，是一家貿(mào)易型公司。公司業(yè)務(wù)涵蓋制冷劑廠家直銷，冷凍油廠家直銷，壓縮機(jī)批發(fā)銷售，制冷配件批發(fā)銷售等，價格合理，品質(zhì)有保證。公司從事化工多年，有著創(chuàng)新的設(shè)計、強(qiáng)大的技術(shù)，還有一批獨(dú)立的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。冰仆冷暖設(shè)備立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2608229.html</p></div></div></div></div></div><div id="j7yaf3w" class="page-right twoColRt"><div id="enb8mzt" class="box01 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