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濾芯解析

2023-04-11  來(lái)自: 中國(guó)水網(wǎng) 瀏覽次數(shù):379

如何進(jìn)行水處理

衡美水處理為您詳細(xì)介紹一種經(jīng)久耐用、性能的水處理設(shè)備耗材——濾芯


濾芯


一、濾芯的分類

1、按濾芯的功能分為:過(guò)濾濾芯、聚結(jié)濾芯、分離濾芯、吸附濾芯。

2、按過(guò)濾的介質(zhì)分為:航油濾芯、工業(yè)油濾芯、烴濾芯、水濾芯、氣濾芯。

二、濾芯的基本結(jié)構(gòu)

雖然濾芯種類較多,但結(jié)構(gòu)主要由端蓋、骨架、濾材、密封件組成。特殊結(jié)構(gòu)需要按特殊結(jié)構(gòu)要求進(jìn)行增加,例如旁通閥、提手、尼龍?jiān)鷰А⒖ü俊⒗p繞帶等特殊要求。各結(jié)構(gòu)特點(diǎn)作用如下

1、端蓋

1特點(diǎn)

A為沖壓件和機(jī)加工件,主要材料為、不銹鋼碳鋼、鋁、尼龍料等。

B有一定的深度的注膠槽。

C徑向密封濾芯的端蓋需要O型槽,軸向密封濾芯的端蓋需要便于安裝密封墊的位置。

D表面處理為噴塑、鍍鋅、鍍鉻、氧化等。

2作用

A存放膠粘劑(TH-1 又叫環(huán)氧樹(shù)脂膠)

B提供與過(guò)濾器連接的接口。

C提高濾芯端向負(fù)載強(qiáng)度。

D端蓋、骨架、濾材連接的紐帶。

E和密封件相連起到密封作用。

2、骨架

骨架按其作用分為兩種,其支撐骨架和保護(hù)骨架。兩者結(jié)構(gòu)的區(qū)別主要是壁厚不同,密布孔的大小和數(shù)量不同。

1支撐骨架(內(nèi)骨架)

A特點(diǎn)

a根據(jù)濾芯承受的強(qiáng)度壓力不同,定制骨架壁較厚。

b壁面上均布小孔。

c金屬材料(或特殊材料)制成。

d金屬材料有不銹鋼或噴塑和鍍鋅。

B作用

a保護(hù)濾芯正常工作所承受濾材產(chǎn)生的壓力差。

b是過(guò)濾介質(zhì)均勻的通過(guò),所產(chǎn)生的阻力小。

c成端向負(fù)載,保證濾芯的軸向垂直度、平行度。

2保護(hù)骨架(外骨架)

A特點(diǎn)

a骨架壁較薄(常用0.3-0.5mm

b孔徑較大一些。

c一般由鋼板或鋁板制成。(油濾芯用的比較多一些)

B作用

a保護(hù)濾材不受外部磕碰而損傷。

b防止濾材在工作中受到壓力沖擊所產(chǎn)生彎曲變形。

c承受部分端向負(fù)載。

3、濾材

濾材主要由過(guò)濾層和支撐層組成。過(guò)濾材料主要分為:玻璃纖維紙(為進(jìn)口紙、國(guó)產(chǎn)紙)、植物纖維紙、不銹鋼網(wǎng)、銅網(wǎng)、合成纖維氈、吸水濾材等。支撐層材料主要為:鍍鋅網(wǎng)、不銹鋼網(wǎng)、植物纖維紙、銅網(wǎng)等。

1過(guò)濾層

A特點(diǎn)

a根據(jù)不同的材質(zhì),精度需求選取不同過(guò)濾材料。

b濾材主要的過(guò)濾作用。

c單層濾材強(qiáng)度一般不高,必要時(shí)需要支撐層和保護(hù)層。

d主要有兩種作業(yè)方式:折疊、裹繞。

B作用

保證系統(tǒng)起到需要的過(guò)濾作用,達(dá)到其規(guī)定的清潔度。

2支撐層

A特點(diǎn):

a金屬網(wǎng)的絲徑較粗。

b單位面積網(wǎng)孔目數(shù)少。

c強(qiáng)度較高,保護(hù)濾材。

B作用:

a支撐濾材,使濾材在壓差下不變形、不損破。

b保持濾材的工藝形狀,使濾材均勻充分的接觸工作介質(zhì),從而提高過(guò)濾效果。

4、密封件

密封件主要分為:密封墊、密封圈、和異型件。材質(zhì)較軟具有可壓縮性和彈性。分為徑向密封和軸向密封,作用效果為保證濾芯與過(guò)濾器連接處的嚴(yán)密性。

5、旁通閥

旁通閥,由閥芯、閥體、彈簧、彈簧座、吊耳、擋圈組成。當(dāng)閥門(mén)兩側(cè)壓力差達(dá)到規(guī)定值時(shí),閥門(mén)座自動(dòng)開(kāi)啟,使工作介質(zhì)旁路通過(guò)。保證過(guò)濾器運(yùn)行,保證整個(gè)系統(tǒng)運(yùn)行穩(wěn)定。

6、提手

提手一般為金屬材料,有一定的剛度。便于用戶對(duì)濾芯的安裝和拆卸,也可用于壓緊濾心。

7、尼龍?jiān)鷰А⒖ü俊⒗p繞帶(PVC材料)

這些材料僅需用于系統(tǒng)壓力脈動(dòng)不大的場(chǎng)合,作用是減小濾材可能產(chǎn)生的反向變形。保持濾材的折距均勻、折峰平行。

8、聚結(jié)濾芯的結(jié)構(gòu)中除了端蓋、骨架、濾材之外還有保護(hù)層(茶葉袋紙)、破乳層(玻璃纖維棉氈)、支撐層(尼龍網(wǎng))、聚結(jié)層(噴膠棉)排放層(棉套)。

三、加工方式

1、濾芯加工工序?yàn)椋合铝稀⒄郫B、壓折、夾邊、組裝、粘接、包裝,精度要求較高時(shí)要做冒泡試驗(yàn),特殊結(jié)構(gòu)或材料需要固化。

2、分離濾芯加工工序?yàn)椋合铝稀⒐@、夾邊、組裝、粘接、包裝。

3、聚結(jié)濾芯加工工序?yàn)椋合铝稀⒗p繞、折疊、固化、夾邊、組裝、粘接、包裝。(工業(yè)聚結(jié)濾芯不需折疊)

4、吸附濾芯加工工序?yàn)椋合铝稀⒗p繞、組裝、固化、粘接、包裝。

四、質(zhì)量控制

質(zhì)量方面實(shí)行首檢與互檢(下道工序檢上道工序),不合格不予接受。

1、下料時(shí)注意濾材支撐網(wǎng)選取是否正確,濾材型號(hào)與圖紙要求是否一致,濾材應(yīng)無(wú)污損,噴涂層均勻(不得有破環(huán))

2、折疊式注意濾材的進(jìn)出油面,嚴(yán)格控制折高和折數(shù)。折數(shù)應(yīng)比圖紙多13折,折高均勻、折線過(guò)渡圓滑、折峰平行 ,不允許出現(xiàn)死折和破壞濾層,每層的濾層兩邊對(duì)齊。

3、植物纖維紙中有五分之一的樹(shù)脂,為提高其強(qiáng)度挺度需要固化到位。

4、夾邊工具為扁嘴鉗和刻絲鉗。夾邊時(shí)用力均勻,不得破損濾材,夾邊搭接不許錯(cuò)位,折間距均勻,夾邊牢固,修剪過(guò)的濾材組建邊緣無(wú)毛刺,且修剪折數(shù)為圖紙要求數(shù)量。

5、膠縫要求均勻,嚴(yán)禁脫膠不允許膠質(zhì)流到搭接縫隙之外,不允許膠質(zhì)在搭接的縫隙中有氣泡,膠質(zhì)要完全固化,待膠固化后,清理多余金屬網(wǎng)頭。

6、組裝時(shí)選取骨架,膠峰處應(yīng)于骨架焊接搭邊出對(duì)齊,除去多余金屬絲,保持其外形美觀。

7、粘接需要挑選端蓋,鍍層不均勻的端蓋不允許使用注意膠質(zhì)是否將端蓋骨架濾材粘接牢固,外流的膠質(zhì)要擦拭干凈,不得有脫膠保持端面和工作臺(tái)清潔。膠質(zhì)充分固化后方可進(jìn)行下道工序,粘接后濾芯的垂直度、平行度要符合圖紙的要求。

8、包裝前檢查濾芯的質(zhì)量,然后按圖紙要求選取密封件、包裝袋、包裝盒,濾芯按要求寫(xiě)好標(biāo)識(shí)待檢(要自己首檢再讓質(zhì)檢部檢測(cè)和簽字)后方可包裝。在包裝過(guò)程中包裝袋不允許有破損,包裝盒和濾芯標(biāo)識(shí)字跡清晰、美觀,方可打包入庫(kù)(運(yùn)作中輕拿輕放,以免磕碰)。

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