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智能一體化氣動薄膜套筒調(diào)節(jié)調(diào)選型分析

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智能一體化氣動薄膜套筒調(diào)節(jié)調(diào)選型分析

本實(shí)用新型公開了一種氣動薄膜套筒調(diào)節(jié)閥,包括閥體,套筒,閥芯,閥桿,閥蓋,填料,填料壓套,填料壓釘,薄螺母,執(zhí)行機(jī)構(gòu).該調(diào)節(jié)閥的結(jié)構(gòu)牢固,安裝使用方便,通過內(nèi),外O型圈和金屬纏繞墊片的設(shè)置,顯著提高了閥體的密封性;通過減速濾網(wǎng)和通孔的設(shè)置,降低了流質(zhì)進(jìn)入閥體的流速,提高了調(diào)節(jié)精度,并且配合內(nèi)凹結(jié)構(gòu),顯著降低了閥體和閥芯在使用中的摩擦損耗,延長了調(diào)節(jié)閥的使用壽命.氣動薄膜套筒調(diào)節(jié)閥采用平衡型閥芯,消除了上的大部分靜態(tài)不平衡力,并有一定的阻尼作用,閥芯導(dǎo)向面大,可以成小流體流動引發(fā)振動且噪音低,比普通的單、雙座調(diào)節(jié)閥噪聲降低10dB左右,能用于壓差相對較大的場合,廣泛地應(yīng)用于電力、冶金、石油、化工、輕工等工業(yè)部門的自動空制系統(tǒng)。氣動薄膜套筒調(diào)節(jié)閥采用套筒導(dǎo)向,導(dǎo)向面積大,穩(wěn)定性好,可以快速在線更換閥內(nèi)件,維修效率高,節(jié)約人力和時間,比雙座閥大的流里系數(shù),且允許壓差大,穩(wěn)定性好,工作時不易產(chǎn)生振動,適用性強(qiáng)等優(yōu)點(diǎn)。

智能一體化氣動薄膜套筒調(diào)節(jié)調(diào)選型分析工作原理:

氣動薄膜套筒調(diào)節(jié)閥采用電-氣門定位器,以電信號和壓縮空氣為動力,接收工業(yè)自動化控制系統(tǒng)輸入的(0-10mADC或4-20mADC)相關(guān)信號,并借助一系列部件,自動地控制調(diào)節(jié)閥開度,從而達(dá)到對管道內(nèi)流體壓力、溫度、流里、液位等工藝參數(shù)的連續(xù)調(diào)節(jié)氣動薄膜套筒調(diào)節(jié)閥流道呈S帝型,整體具有工作平穩(wěn)、允許壓差大、流里特性準(zhǔn)確、噪音低等特點(diǎn),特別適用于流里大,閥前后壓差較大,世露要求不高的工作場合。

智能一體化氣動薄膜套筒調(diào)節(jié)調(diào)選型分析特點(diǎn):

采用平衡式閥芯結(jié)構(gòu),軸向平衡力小,允許壓差,穩(wěn)定性好。

套筒互換性強(qiáng),拆裝方便,容易維修。

全金屬閥芯結(jié)構(gòu)適用多種工作場合,達(dá)到IV級泄漏標(biāo)準(zhǔn),ZXMO型軟密封結(jié)構(gòu)閥芯達(dá)到VI級泄漏標(biāo)準(zhǔn),ZXMQ型軟密封結(jié)構(gòu)閥芯達(dá)到VI級泄漏標(biāo)準(zhǔn)。

閥體按流體力學(xué)原理設(shè)計(jì)成等截面低流組流道,可調(diào)范圍大,固有可調(diào)比為50,額定流量系數(shù)增大30%。

執(zhí)行機(jī)構(gòu)采用多彈簧結(jié)構(gòu),高度減少30%、重量減輕30%。

ZXPV型波紋管密封型調(diào)節(jié)閥,對移動的閥桿形成了*密封,堵絕流體外漏。

ZXPJ型調(diào)節(jié)閥帶有保溫夾套,用于流體冷卻后易結(jié)晶、凝固造成堵塞的場合。

智能一體化氣動薄膜套筒調(diào)節(jié)調(diào)選型分析主要技術(shù)參數(shù)

                 調(diào)節(jié)機(jī)構(gòu)主要技術(shù)參數(shù)
                 公稱通徑DN(mm)                 G3/4                 20                 25                 32                 40                 50                 65                 80                 100                 125                 150                 200                 250                 300
閥座直徑DN                 3                 4                 5                 6                 7                 8                 10                 12                 15                 20                 26                 32                 40                 50                 65                 80                 100                 125                 150                 200                 250                 300
額定流量系數(shù)(Kv)                 ZMA/BP                 0.08                 0.12                 0.2                 0.32                 0.5                 0.8                 1.2                 2                 3.2                 5                 8                 12                 20                 32                 50                 80                 120                 200                 280                 450                 700                 1000
                 ZMA/BN









                 10                 16                 25                 40                 63                 100                 160                 250                 400                 630                 1000                 1600
公稱壓力MPA                 1.6 4.0 6.4(低溫型) 1.6 4.0 6.4(常溫型) 4.0 6.4(中溫型)
                 行程MM                 10                 16                 25                 40                 60                 100
流量特性                 直線                 直線、等百分比
                 介質(zhì)溫度-250~-60(低溫型);-20~200(常溫型);-40~450中溫型)
                 法蘭尺寸                 鑄鐵法蘭尺寸按JB78-59,鑄鋼法蘭尺寸按JB79-59
法蘭型式                 法蘭密封面型式按JB77-59,其中鑄鐵法蘭按光滑式,鑄鋼法蘭按凹式
                 閥體材質(zhì)MAP低溫型ZG1CR18Ni9Ti
                 1.6常溫型HT200 
                 4.0,6.4常、中溫型 ZG270-500;ZG1CR18Ni9Ti,
閥芯材質(zhì)1CR18Ni9Ti,
上閥蓋型式                 長頸式(低溫型)普通式(常溫型);熱片式(中溫型)
                 可調(diào)比30:1

氣動調(diào)節(jié)閥14.jpg

執(zhí)行機(jī)構(gòu)主要技術(shù)參數(shù)
                 型號ZMA/B-1                 ZMA/B-2                 ZMA/B-3                 ZMA/B-4                 ZMA/B-5                 ZMA/B-6
有效面積CM2                 200                 280                 400                 630                 1000                 1600
行程MM                 10                 16                 25                 40                 60                 100
彈簧范圍MPA                0.02~0.10;0.04~0.20;;0.02~0.60;0.06~0.10;0.08~0.24

電動自力式03.jpg

智能一體化氣動薄膜套筒調(diào)節(jié)調(diào)選型分析主要零部件

                 氣動薄膜調(diào)節(jié)閥,氣動調(diào)節(jié)閥主要零件材料及推薦使用溫度范圍
                 零件名稱                 零件材料                 溫度范圍
                 閥體
上下閥蓋
HT200-20~+200
                 ZG270-500-40~+450
                 ZG1CR18Ni9Ti-250~+550
閥芯、閥座、閥桿1CR18Ni9-250~+550
上下膜蓋A3鋼板
                 支架、頂盤HT200
壓縮彈簧60Si2Mn
波紋薄膜5806膠夾480D尼龍網(wǎng)眼布
                 填料F4-40~+200
碳纖維-120~+350
柔性石墨-200~+600
許用介質(zhì)壓力和工作溫度關(guān)系
                 閥體材料                 公稱壓力
MPA
介質(zhì)工作溫度
                 <120                 <200                 <250                 <300                 <350                 <400                 <425                 <450
最大工作壓力MPA
                 HT200                 1.6                 1.6                 1.5





                 ZG250-500                 4
                 4                 3.7                 3.3                 3                 2.8                 2.3                 1.8
                 6.4
                 6.4                 5.9                 5.2                 4.7                 4.1                 3.7                 2.9
                 ZG1Cr18Ni9Ti                 4



                 4                 3                 2.7                 2.4
                 6.4



                 6.4                 4.4                 4.2                 4

氣動薄膜調(diào)節(jié)閥,氣動調(diào)節(jié)閥性能參數(shù)

                 主要技術(shù)性能指標(biāo)
                 項(xiàng)目                 指標(biāo)值
                 低溫型                 中常溫型
                 基本誤差%不帶定位器±6±5.0
帶定位器±1.5±1.0
回差%不帶定位器5                 3.0
帶定位器1.5                 1.0
死區(qū)%不帶定位器4                 3.0
帶定位器0.6                 0.4
額定行程偏差%±2.5
項(xiàng)目                 指標(biāo)值
                 低溫型                 中常溫型
                 始

點(diǎn)


%
氣關(guān)                 不帶定位器                 始點(diǎn)±6±5.0
終點(diǎn)±2.5±2.5
帶定位器                 始點(diǎn)±1.5±1.0
終點(diǎn)±1.5±1.0
氣開                 不帶定位器                 始點(diǎn)±2.5±2.5
終點(diǎn)±6±5.0
帶定位器                 始點(diǎn)±1.5±1.0
終點(diǎn)±1.5±1.0
允計(jì)泄漏量1/h單座式1*10-4*閥定額定容量
                 單座式1*10-3*閥定額定容量
允許壓差(單座調(diào)節(jié)閥)
                 氣源
壓力
MPA
彈簧
范圍
MPA
公稱通徑
G3/4"                 20                 25                 32                 40                 50                 65                 80                 100                 125                 150                 200
                 3                 4                 5                 6                 7                 8                 10                 12                 15                 20









                 0.14                 0.02~0.10                 6.4                 5.4                 3.7                 2.4                 1.35                 0.8                 0.55                 0.5                 0.3                 0.3                 0.2                 0.12                 0.12                 0.08                 0.05
                 0.24                 0.04~0.20






                 6.4                 4.8                 2.7                 1.6                 1.1                 1                 0.6                 0.6                 0.4                 0.24                 0.24                 0.16                 0.1
                 0.1                 0.06~0.10







                 6.4                 4.05                 2.4                 1.65                 1.5                 0.9                 0.6                 0.6                 0.36                 0.36                 0.24                 0.15
注:條件為閥桿在介質(zhì)流出端、關(guān)閉時P2=0


智能一體化氣動薄膜套筒調(diào)節(jié)調(diào)選型分析

氣動薄膜套筒調(diào)節(jié)閥,采用平衡式閥塞結(jié)構(gòu),閥塞的穩(wěn)定性好,不易產(chǎn)生震動,噪音低,對溫度敏感性??;允許使用的壓差較大。適用于流量大,差壓大,泄漏量要求不嚴(yán)格的場合。低溫型采用長頸式上閥蓋,以保護(hù)填料處在較高溫度,控制低溫氣體,液體。套筒調(diào)節(jié)閥切斷閥采用了軟密封或硬密封結(jié)構(gòu),特別使用于既要求調(diào)節(jié)雙要求切斷的場合。