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Rexroth力士樂(lè)溢流閥A4VG250HD1D1/32LNZD10F001S節(jié)流閥單向閥
一般的電熱(鼓風(fēng))干燥箱均設(shè)有溫度均勻度參數(shù)：自然對(duì)流式的干燥箱為工作溫度上限乘3%，強(qiáng)制對(duì)流式的干燥箱為工作溫度上限乘2.5%。惟獨(dú)電熱真空干燥箱不設(shè)溫度均勻度參數(shù)，這是為什么？真空干燥箱內(nèi)依靠氣體分子運(yùn)動(dòng)使工作室溫度達(dá)到均勻的可能性幾乎已經(jīng)沒(méi)有了。從概念上我們就不能再把通常電熱(鼓風(fēng))干燥箱所規(guī)定的溫度均勻度定義用到真空干燥箱上來(lái)。在真空狀態(tài)下設(shè)這個(gè)指標(biāo)也是沒(méi)有意義的。熱輻射的量與距離的平方成反比。
[B]第二，從真空設(shè)備的工作真空度來(lái)選擇真空度測(cè)控范圍：[/B]而不是根據(jù)使用真空泵或機(jī)組的極限真空度來(lái)選擇，如，系統(tǒng)采用2x旋片泵，其極限真空度可達(dá).5Pa，由于抽氣效率的原因，往往用在1Pa以上，所以應(yīng)該選擇.1kPa測(cè)量下限即可（下限越低，往往精度要求越高，價(jià)格也越高）[B]第三，合理選擇測(cè)量精度等級(jí)和測(cè)量分辨率，一般設(shè)備選擇1.級(jí)、.5級(jí)就可以了[/B]，但是如果是作為精密真空度測(cè)量和控制、計(jì)量標(biāo)準(zhǔn)器等等，就要選擇.1級(jí)、高分辨率的儀表；陶瓷薄膜規(guī)（--PS51--ABCD）;[B]對(duì)于用來(lái)測(cè)量管道、容器、散熱器、空調(diào)冰箱部件密封[/B]等等用途的真空計(jì)選型，可以選擇..25級(jí)精度、但是分辨率為1Pa的高分辨率的儀表如（28--31ap型），性?xún)r(jià)比極高；另外，還要根據(jù)需要測(cè)控的泵閥來(lái)[B]選擇儀器的測(cè)控繼電器等等控制功能[/B]，好要選擇帶有真空智能測(cè)控功能的儀表[B]（一個(gè)繼電器就能控制一個(gè)啟停或開(kāi)閉的真空度區(qū)間[/B]，而不是一個(gè)點(diǎn)）。
一般來(lái)講，系統(tǒng)的極限真空度比系統(tǒng)的工作真空度低2%，比前級(jí)泵的極限真空度低5%。被抽氣體種類(lèi)與抽氣量?檢查確定工藝要求的抽氣種類(lèi)與抽氣量。因?yàn)槿绻怀闅怏w種類(lèi)與泵內(nèi)液體發(fā)生反應(yīng)，泵系統(tǒng)將被污染。同時(shí)必須考慮確定合適的排氣時(shí)間與抽氣過(guò)程中產(chǎn)生的氣體量。真空容積檢查確定達(dá)到要求的真空度所需要的時(shí)間、真空管道的流阻與泄漏?？紤]達(dá)到要求真空度后在一定工藝要求條件下維持真空需要的抽氣速率。選用真空泵時(shí)需要注意事項(xiàng)：真空泵的工作壓強(qiáng)應(yīng)該滿(mǎn)足真空設(shè)備的極限真空及工作壓強(qiáng)要求。
2帶塵煙氣煙氣帶塵可能對(duì)受熱面產(chǎn)生磨損，又可能產(chǎn)生積灰，以至于堵灰、搭橋等現(xiàn)象。往往這兩種機(jī)理相反的現(xiàn)象又可能同時(shí)存在于一臺(tái)鍋爐之中。使用這種煙氣余熱鍋爐的選型應(yīng)以防止受熱面磨損和煙道積灰、堵灰、搭橋?yàn)橹饕繕?biāo)。根據(jù)帶塵煙氣的級(jí)別與煙塵特性，適用的爐型有：立式布置的強(qiáng)制循環(huán)水管鍋爐；臥式布置的強(qiáng)制循環(huán)水管鍋爐；雙鍋筒水管鍋爐。1.3粘結(jié)性煙氣煙氣的粘結(jié)性是指其在工作煙溫下，所挾帶的煙塵，集升華與氣化物質(zhì)等，在一定條件下粘附在鍋爐受熱面或其他部件上的特性。



A10VSO100:
                  A10VSO100DFR/31L-PSC62K07,A10VSO100DFR1/31R-PUC12N00 


A10VSO10:
                 A10VSO10DFR1/52R-PKC64N00,A10VSO10DFR1/52R-PPA14N00,A10VSO10DR/52L-PKC64N00,A10VSO10DR/52R-PKC64N00,A10VSO10DR/52R-PPA14N00


A10VSO18:
                A10VSO18DFR/31R-PKC62N00,A10VSO18DFR/31R-PPA12K01,A10VSO18DFR/31R-PPA12N00,A10VSO18DFR1/31R-PPA12K01,A10VSO18DFR1/31R-PPA12N00 
A10VSO18DFR1/31R-PUC62N00,A10VSO18DR/31L-PUC12N00,A10VSO18DR/31R-PPA12N00,A10VSO18DR/31R-PSC12N00,A10VSO18DRG/31R-PPA12N00 


A10VSO28:
                A10VSO28DFLR/31L-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00 
A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PPA12N00,A10VSO28DFLR/31R-PSA12N00 
A10VSO28DFR/31R-PPA12N00,A10VSO28DFR/31R-PPA12N00,A10VSO28DFR/31R-VPA12N00,A10VSO28DFR1/31R-PPA12L30,A10VSO28DFR1/31R-PPA12N00 
A10VSO28DFR1/31R-PSC12N00,A10VSO28DFR1/31R-PSC62N00,A10VSO28DG/31R-PPA12N00,A10VSO28DR/31L-PPA12N00,A10VSO28DR/31R-PPA12N00 
A10VSO28DRG/31R-PPA12K25,A10VSO28DRG/31R-PPA12N00,A10VSO28ED73/52L-VSC11N00P 


A10VSO45:
                A10VSO45DFLR/31R-PPA12K57,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00 
A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFLR/31R-PPA12N00,A10VSO45DFR/31R-PPA12N00,A10VSO45DFR/31R-PPA12O30 
A10VSO45DFR/31R-PSC62N00,A10VSO45DFR/52R-PSC12N00,A10VSO45DFR1/31R-PPA12G60,A10VSO45DFR1/31R-PPA12K54,A10VSO45DFR1/31R-PPA12K57 
A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/31R-PPA12N00,A10VSO45DFR1/52L-PSC11N00,A10VSO45DFR1/52R-PUC11N00 
A10VSO45DR/31R-PPA12K01,A10VSO45DR/31R-PPA12K25,A10VSO45DR/31R-PPA12K57,A10VSO45DR/31R-PPA12N00,A10VSO45DR/31R-PPA12O90 
A10VSO45DRG/31R-PPA12N00,A10VSO45ED72/52R-VSC11N00T 


A10VSO60:
                A10VSO60DFR/52R-PCD11N00 


A10VSO71:
                A10VSO71DFLR/31R-PPA12N00,A10VSO71DFLR/31R-PPA12N00,A10VSO71DFR/31L-PSC62N00,A10VSO71DFR1/31R-PSC12N00,A10VSO71DRG/31L-PSC12N00 


AA10VSO100:
                   AA10VSO100DFLR/31R-PPA12G30,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00 
AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFLR/31R-PPA12N00,AA10VSO100DFR/31R-PPA12K01,AA10VSO100DFR/31R-PPA12K25,
AA10VSO100DFR/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12K25,AA10VSO100DFR1/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12N00,AA10VSO100DFR1/31R-PPA12N00,
AA10VSO100DR/31R-PPA12N00,AA10VSO100DR/31R-PPA12N00,AA10VSO100DR/31R-VPA12N00,AA10VSO100DRG/31R-PPA12N00 


AA10VSO140:
                    AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PPB12N00,
AA10VSO140DFLR/31R-PPB12N00,AA10VSO140DFLR/31R-PSB12N00,AA10VSO140DFR/31R-PPB12N00,AA10VSO140DFR1/31R-PPB12N00,AA10VSO140DFR1/31R-PPB12N00,AA10VSO140DFR1/31R-VPB12N00,AA10VSO140DR/31L-PPB12N00,AA10VSO140DR/31R-PPB12K02,AA10VSO140DR/31R-PPB12N00,AA10VSO140DRG/31R-PPB12N00 


AA10VSO71:
                  AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,
AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFLR/31R-PPA12N00,
AA10VSO71DFLR/31R-PPA12N00,AA10VSO71DFR/31R-PPA12K01,AA10VSO71DFR/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12K01,
AA10VSO71DFR1/31R-PPA12L30,AA10VSO71DFR1/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12N00,AA10VSO71DFR1/31R-PPA12X31,
AA10VSO71DR/31R-PPA12N00,AA10VSO71DRG/31R-PPA12K01,AA10VSO71DRG/31R-PPA12N00,AA10VSO71FHD/31R-PPA12K01