DBDS10G1A/100力士樂安全閥，武漢百士自動化設(shè)備有限公司供應(yīng)產(chǎn)品，現(xiàn)貨庫存，原廠原裝，質(zhì)量保障，假一罰十，價格優(yōu)惠；移動電話：15307180902，商務(wù)QQ：980227448，傳真：027-87680708-608，聯(lián)系人：雷青；歡迎新老客戶咨詢購買！
安全閥是啟閉件受外力作用下處于常閉狀態(tài)，當(dāng)設(shè)備或管道內(nèi)的介質(zhì)壓力升高超過規(guī)定值時，通過向系統(tǒng)外排放介質(zhì)來防止管道或設(shè)備內(nèi)介質(zhì)壓力超過規(guī)定數(shù)值的特殊閥門。安全閥屬于自動閥類，主要用于鍋爐、壓力容器和管道上，控制壓力不超過規(guī)定值，對人身安全和設(shè)備運(yùn)行起重要保護(hù)作用。注安全閥必須經(jīng)過壓力試驗才能使用。
安全閥是閥門家族比較特殊的一個分支，它的特殊性是因為不同于其它閥門僅僅起到開關(guān)的作用，更重要的是起到保護(hù)設(shè)備的安全。隨著我國經(jīng)濟(jì)建設(shè)的快速發(fā)展，在帶有壓力操控的設(shè)備項目工程越來越多。鑒于設(shè)備泄壓的需要，安全閥在保護(hù)設(shè)備過程中起到至關(guān)重要的作用。截止2013年各類安全閥制造商和貿(mào)易商已超過700多家，每日交易詢盤達(dá)到200多條，安全閥供求市場明顯升溫。通過季度數(shù)據(jù)初步分析，安全閥需求量要高出二十個百分點。安全閥是鍋爐、壓力容器和其他受壓力設(shè)備上重要的安全附件。安全閥(又稱泄壓閥)是根據(jù)壓力系統(tǒng)的工作壓力(工作溫度)自動啟閉，一般安裝于封閉系統(tǒng)的設(shè)備或管路上保護(hù)系統(tǒng)安全。當(dāng)設(shè)備或管道內(nèi)壓力或溫度超過安全閥設(shè)定壓力時，自動開啟泄壓或降溫，保證設(shè)備和管道內(nèi)介質(zhì)壓力(溫度)在設(shè)定壓力(溫度)之下，保護(hù)設(shè)備和管道正常工作，防止發(fā)生意外，減少損失。安全閥主要被廣泛應(yīng)用于：蒸汽鍋爐、液化石油氣汽車槽車或液化石油氣鐵路罐車、采油井、蒸汽發(fā)電設(shè)備的高壓旁路、壓力管道、壓力容器等。安全閥一般按結(jié)構(gòu)形式分為彈簧式安全閥和杠桿式安全閥、脈沖式安全閥，其中彈簧式安全閥應(yīng)用為普遍;按連接方式分為螺紋安全閥和法蘭安全閥。安全閥口徑一般都不大，常用的都在DN15mm-DN80mm之間，超過150mm一般都稱為大口徑安全閥。2013年安全閥行業(yè)市場規(guī)模擴(kuò)大，這已是一個不爭的事實。我國能夠有資質(zhì)生產(chǎn)安全閥會。
DBDS10G1A/100力士樂安全閥
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液壓傳動是一種可達(dá)到傳遞動力、增加動力、改變速比等目的的傳動方式。液壓傳動是以液體為工作介質(zhì)，靠處于密閉容器內(nèi)的液體靜壓力來傳遞力的傳動方式，靜壓力的大小取決于負(fù)載，而負(fù)載速度的傳遞是按液體容積變化相等的原則進(jìn)行的，其速度大小取決于流量；如果忽略損失，液壓傳動所傳遞的力與速度無關(guān)。
液壓傳動相比其他傳統(tǒng)傳動方式優(yōu)勢較為明顯：1）功率重量比大，能以較輕的設(shè)備重量取得更大的力和轉(zhuǎn)矩；2）慣性小，啟動、制動迅速；3）無級調(diào)速，調(diào)速范圍大，低速性能好；4）高響應(yīng)速度；5）高負(fù)載剛度；6）可控性好，易于實現(xiàn)自動化，液壓元件位臵可以根據(jù)設(shè)備需要進(jìn)行調(diào)整。
液壓傳動已成為現(xiàn)代機(jī)械裝備與機(jī)電產(chǎn)品的重要基礎(chǔ)技術(shù)，在工業(yè)機(jī)械領(lǐng)域有著極為廣泛的應(yīng)用。液壓系統(tǒng)的應(yīng)用領(lǐng)域包括：工業(yè)生產(chǎn)（鍛壓機(jī)械、注塑機(jī)、機(jī)床、加工中心、機(jī)器人、礦山機(jī)械、包裝機(jī)械等）、行走機(jī)械（工程機(jī)械、建筑機(jī)械、農(nóng)業(yè)機(jī)械、汽車等）、航空航天（飛機(jī)、宇宙飛船、衛(wèi)星發(fā)射裝臵等）、艦船（船舶及艦艇甲板機(jī)械、操作及控制系統(tǒng)）、海洋工程（海洋開發(fā)平臺、海底鉆探、水下作業(yè)等）。以國外為例，約95%的工程機(jī)械、90%的數(shù)控加工中心、95%的自動化生產(chǎn)線均采用液壓傳動。此外，根據(jù)工業(yè)機(jī)械設(shè)備使用的液壓系統(tǒng)壓力條件不同，可按其額定壓力分為低壓系統(tǒng)（<6.3MPa）、中壓系統(tǒng)（6.3-10MPa）、中高壓系統(tǒng)（10-20MPa）和高壓系統(tǒng)（>20MPa）。
液壓系統(tǒng)主要由5個部分組成，泵、閥、油缸、馬達(dá)為核心元件。典型的液壓系統(tǒng)由動力元件（主要是液壓泵）、控制元件（主要是液壓閥）、執(zhí)行元件（包括液壓油缸、液壓馬達(dá)）、輔助元件（包括油箱、過濾器、蓄能器、熱交換器）、工作介質(zhì)（包括礦物油、乳化液、液壓油等）5個部分組成，其中泵、閥、油缸、馬達(dá)的技術(shù)難度大、產(chǎn)品附加值高、價值占比較高，是液壓系統(tǒng)的核心元件。
液壓泵：主要有柱塞泵、齒輪泵、葉片泵和螺桿泵。其中，柱塞泵、葉片泵屬于高壓泵，齒輪泵屬于低壓泵。以柱塞泵為例，其密封工作腔構(gòu)件為圓柱形的柱塞和缸體，容易得到較高的配合精度，特點是泄漏量小，容積效率高，可以在高壓下工作；由于柱塞泵壓力高、結(jié)構(gòu)緊湊、效率高、流量調(diào)節(jié)方便，故在需要高壓、大流量、大功率的系統(tǒng)中和流量需要調(diào)節(jié)的場合，如工程機(jī)械、礦山冶金機(jī)械、船舶、重型刨床及液壓機(jī)等設(shè)備上廣泛應(yīng)用。
液壓閥：主要分為方向閥、流量閥、壓力閥。方向閥用于控制系統(tǒng)中的油流方向，包括換向閥、單向閥等；流量控制閥，用于控制液壓系統(tǒng)中油的流量，包括節(jié)流閥、調(diào)速閥等；壓力控制閥，用于控制系統(tǒng)中的油壓，包括溢流閥、減壓閥、順序閥等；上述三類閥可組成各種復(fù)合閥。
液壓油缸：液壓缸由缸體、可移動的活塞和連接活塞的活塞桿組成，缸體兩端用端蓋進(jìn)行封閉，端蓋可采用螺紋、卡圈、拉桿或焊接等方式與缸體連接；分為雙作用式、單作用式、伸縮式。
液壓馬達(dá)：分為單向、雙向液壓馬達(dá)，也分為定量馬達(dá)與變量馬達(dá)。