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href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxhxp/">精細化學品</a>?<a href="http://www.cdcfah.com/cp/second-jxhxp_tlzjdy/">涂料助劑</a>?<a href="http://www.cdcfah.com/cp/third-tlzjdy_qttlzjrh/">其他涂料助劑</a>?液態(tài)制冷劑上海冰仆冷暖設(shè)備供應(yīng)</p><div id="07ho77n" class="leftbox clearfix"><h1>液態(tài)制冷劑上海冰仆冷暖設(shè)備供應(yīng)</h1><div id="ds9mcjq" class="proBig"><div id="6jah8ev" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017223013032/838961.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hgvmudf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/bingpu/637401017223013032/838961.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kzdptkh" 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>液態(tài)制冷劑,制冷劑</p><p><span>***更新：</span>2020-12-10 01:20:01</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="qzbdk3a" 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: </span>1-1</p><p><span>地址: </span>美丹路222號629室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="3oqszbs" class="page-proshow02"><p class="title">詳細說明</p><div id="gkrtvmt" class="box"><p><p style="text-indent:25px">在小型氟利昂制冷裝置中不設(shè)分油器，而裝設(shè)干燥器。同時規(guī)定R12中含水量不得大于0.0025%，系統(tǒng)中不能用一般天然橡膠作密封墊片，而應(yīng)采用丁腈橡膠或氯乙醇等人造橡膠。否則，會造成密封墊片的膨脹引起制冷劑的泄漏。R22也是烷烴的鹵代物，學名二氟一氯甲烷，分子式為CHClF2，標準蒸發(fā)溫度約為－41℃，凝固溫度約為－160℃，冷凝壓力同氨相似，液態(tài)制冷劑，單位容積標準制冷量約為454kcal/m3，液態(tài)制冷劑。R22的許多性質(zhì)與R12相似，但化學穩(wěn)定性不如R12，毒性也比R12稍大。但是，R22的單位容積制冷量卻比R12大的多，接近于氨。當要求－40～－70℃的低溫時，液態(tài)制冷劑，利用R22比R12適宜，故目前R22被較廣應(yīng)用于－40～－60℃的雙級壓縮或空調(diào)制冷系統(tǒng)中。R404A是一種不含氯的非共沸混合制冷劑。液態(tài)制冷劑</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="液態(tài)制冷劑,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401017223013032/838961.png"></div><p style="text-indent:25px">在蒸汽壓縮式制冷機中，制冷劑選擇除了要有較好的熱力性質(zhì)和物理化學性質(zhì)外，更應(yīng)具有優(yōu)良的環(huán)境特性。具體要求如下：（1）對人類生態(tài)環(huán)境無破壞作用。不破壞大氣臭氧層，不產(chǎn)生溫室效應(yīng)。（2）臨界溫度較高。在常溫或普通低溫下能夠液化。希望臨界溫度比環(huán)境溫度高的多，才能減少制冷劑節(jié)流損失，提高循環(huán)經(jīng)濟性。（3）在工作溫度范圍內(nèi)，具有適當?shù)娘柡险羝麎毫Γ^起碼蒸發(fā)壓力不得低于大氣壓力，以免外部空氣滲入系統(tǒng)中；冷凝壓力不宜過高，否則會引起壓縮機耗功增加，并要求系統(tǒng)具有較高的承壓能力，增加設(shè)備成本。液態(tài)制冷劑制冷劑與潤滑油需有良好互溶性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="液態(tài)制冷劑,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016762036788/8015452.png"></div><p style="text-indent:25px">R-12制冷劑別名R12、氟利昂12、F-12、CFC-12、二氟二氯甲烷，商品名稱有Freon 12等，中文名稱二氟二氯甲烷，英文名稱Dichlorodifluoromethane，分子式CCl2F2。由于R-12屬于CFC類物質(zhì)（首先批受限的ODS物質(zhì)Class I Ozone-depleting Substances）——對臭氧層有破壞、并且存在溫室效應(yīng)，因此在發(fā)達的各國和部分發(fā)展中的各國，已經(jīng)停止了在新空調(diào)、制冷設(shè)備上的初裝或舊設(shè)備上的再添加；中國2007年已停止了R12制冷劑的生產(chǎn)、以及在新制冷空調(diào)設(shè)備上的初裝。作為使用較較廣的中低溫制冷劑，R-12主要應(yīng)用于冰箱、冷柜、飲水機、汽車空調(diào)、商用空調(diào)、冷庫、商業(yè)制冷、冷凍冷凝機組等制冷設(shè)備中。二氟二氯甲烷同時還可應(yīng)用于氣霧推進劑、物理發(fā)泡劑、配醫(yī)用消毒劑、殺蟲藥發(fā)射劑等。</p><p style="text-indent:25px">制冷劑的排放一般指直接把制冷劑排放到空氣中，排放時，周圍環(huán)境一定要通風良好，不能接近明火，否則要產(chǎn)生有毒氣體。1，關(guān)閉歧管壓力計上的高，低壓手動閥，連接其高，低壓軟管分別接在壓縮機高，低壓檢修閥上，中間管的自由端放在工作擦布上。2，慢慢打開高壓手動閥，讓制冷劑從中間軟管上排出，閥門不能開得太大，否則壓縮機內(nèi)的冷凍潤滑油會隨制冷劑替代。3，當壓力表讀數(shù)降到0.35MPa以下時，再慢慢打開手動閥，使制冷劑從高，低壓雙向同時排出。4，觀察壓力表讀數(shù)，隨著壓力下降，逐漸開大高，低壓手動閥，直至高，低壓表的讀數(shù)指示為零。制冷劑在南方一些地區(qū)俗稱雪種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="液態(tài)制冷劑,制冷劑" src="https://tyunfile.71360.com/UploadFile/bingpu/637401016110366930/9149962.png"></div><p style="text-indent:25px">根據(jù)對國內(nèi)外大中型冷庫制冷劑使用情況的調(diào)研，分析了大中型冷庫制冷劑的現(xiàn)狀。根據(jù)國際上較新的文獻，評論了冷庫制冷劑應(yīng)用的發(fā)展新動向。結(jié)果表明：在國內(nèi)外大中型冷庫中，目前采用氨制冷劑是主流，今后氨仍然將是主要制冷劑。在蒸發(fā)溫度-35℃以上，壓縮式制冷采用氨制冷劑是較節(jié)能的。采用氨制冷劑的關(guān)鍵問題是安全問題。在制冷劑的發(fā)展動向中，CO2系統(tǒng)成為新一代制冷劑關(guān)注的重點，CO2/NH3復疊式制冷系統(tǒng)具有較大的發(fā)展?jié)摿ΑＴ陂g接制冷系統(tǒng)中，采用氨水替代乙二醇作為載冷劑，可以使系統(tǒng)能耗明顯降低。氨作為制冷劑易于獲得、價格低廉、壓力適中、單位制冷量大、放熱系數(shù)高。杭州高效制冷劑一般加多少</p><p style="text-indent:25px">混合共沸制冷劑在空氣冷凝的前提下，蒸發(fā)溫度可以達到-150度左右。液態(tài)制冷劑</p><p style="text-indent:25px">冰箱如果其它方面都正常運行但是卻不制冷很有可能就是缺乏制冷劑了，冰箱的制冷劑是實現(xiàn)制冷的基礎(chǔ)，如果想要讓冰箱重新發(fā)揮制冷作用，就需要添加制冷劑，現(xiàn)在咱們就來給大家講解一下冰箱制冷劑吧。制冷劑應(yīng)該怎么添加呢？冰箱添加制冷劑必須熟悉冰箱的結(jié)構(gòu)，如果熟悉了冰箱的結(jié)構(gòu)就可以輕松的給冰箱添加制冷劑了。首先是切斷電源，讓冰箱的全部系統(tǒng)停下來，過一段時間之后再進行下一步，防止意外的發(fā)生。然后就是連接系統(tǒng)的時候注意先關(guān)閉高低壓閥門，再把系統(tǒng)高低壓連接并且鎖緊，接上注上接口連接真空泵之后就可以進行系統(tǒng)抽真空了步驟了。液態(tài)制冷劑</p><p style="text-indent:25px">上海冰仆冷暖設(shè)備有限公司位于美丹路222號629室。公司業(yè)務(wù)分為制冷劑廠家直銷，冷凍油廠家直銷，壓縮機批發(fā)銷售，制冷配件批發(fā)銷售等，目前不斷進行創(chuàng)新和服務(wù)改進，為客戶提供良好的產(chǎn)品和服務(wù)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造化工良好品牌。冰仆冷暖設(shè)備立足于全國市場，依托強大的研發(fā)實力，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/2336843.html</p></div></div></div></div></div><div id="uiur2sz" class="page-right twoColRt"><div id="sryugnk" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8eqsubs" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="qahykbi" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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