進(jìn)口水用安全閥(德國(guó)奧萊斯OLES閥門)
【進(jìn)口水用安全閥】詳細(xì)說(shuō)明:
安全閥是一種自動(dòng)閥門,它不借助任何外力而利用介質(zhì)本身的力來(lái)排出額定數(shù)量的流體,以防止壓力超過(guò)額定的安全值。當(dāng)壓力恢復(fù)正常后,閥門再行關(guān)閉并阻止介質(zhì)繼續(xù)流出。因此,安全閥常用在鍋爐、壓力容器、受壓設(shè)備或管道上,作為超壓保護(hù)裝置,用來(lái)防止受壓設(shè)備的壓力超過(guò)設(shè)計(jì)允許值,從而保護(hù)設(shè)備及其人員的安全。用水安全閥(封閉型)采用全封閉閥蓋和閥帽結(jié)構(gòu),安全閥開(kāi)啟排放時(shí),介質(zhì)不會(huì)向外界泄漏,而全部通過(guò)排泄管排掉,又可防止灰塵等雜質(zhì)進(jìn)入閥內(nèi),適用于溫度不高于300度的氣體和需要大排量的液體介質(zhì)。
Safety valve is an automatic valve, it does not use any external force and use the force of the medium itself to discharge the rated amount of fluid, in order to prevent pressure exceeding the rated safety value. When the pressure returns to normal, the valve closes again and prevents the medium from flowing out. Therefore, safety valves are often used in boilers, pressure vessels, pressure equipment or pipelines as overpressure protection devices to prevent pressure of pressure equipment exceeding the design allowable value, thereby protecting the safety of equipment and its personnel. The water safety valve (closed type) adopts fully closed cover and cap structure. When the safety valve is opened and discharged, the medium will not leak out to the outside world, but all will be discharged through the discharge pipe, and impurities such as dust can be prevented from entering the valve. It is suitable for gases with temperature not higher than 300 degrees and liquid media requiring large discharge.
[Import water safety valve]
【進(jìn)口水用安全閥】材質(zhì)說(shuō)明:
彈簧是在較高應(yīng)力下工作,材料表面受力zui大,彈簧的綜合力學(xué)性能及材料表面質(zhì)量對(duì)彈簧影響較大,彈簧材料用量zui多的是彈簧鋼,其次是鎳合金、高彈性合金等,特殊工況下也采用一些不銹鋼、耐溫鋼或其他高強(qiáng)度鋼用于制作彈簧。在表2-23中,列了常用的彈簧材料,在設(shè)計(jì)選用中做為參考。彈簧鋼制作的彈簧,硬度高低與平面應(yīng)變斷裂韌性關(guān)系*,隨著硬度增加,平面應(yīng)變斷裂韌性值顯著下降。在確定彈簧的硬度值時(shí),應(yīng)本著滿足彈簧特性要求的前提下,彈簧的硬度值偏低一些好。要注意鋼材的淬透性。彈簧材料截面是否淬透以及淬透的程度,對(duì)彈簧質(zhì)量關(guān)系*。彈簧選材時(shí),對(duì)水(包括海水)、水蒸汽環(huán)境中工作的彈簧,一般選用銅合金材料。在酸類接觸及其他腐蝕介質(zhì)下工作的彈簧,一般選用不銹鋼酸鋼或鎳合金等耐蝕材料。在一般環(huán)境介質(zhì)條件下使用的彈簧,選用普通彈簧鋼,制成彈簧后在其表面進(jìn)行防銹涂覆或電鍍(鍍鋅、鍍鉻、鍍銅)的方法防腐蝕。
【進(jìn)口水用安全閥】特點(diǎn):
1、排量較小,節(jié)約能源;
2、平面結(jié)構(gòu)的閥瓣和閥座易于維修和重新加工 ;
3、整定壓力偏差小,可達(dá)±3% ;
4、選用優(yōu)質(zhì)的彈簧鋼,保證彈簧的壽命和穩(wěn)定性。