紧急泄压人孔工作原理：

在阻火呼吸阀正常工作情况下，呼吸人孔,阻火紧急放空人孔基本保持密封状态，储罐处于正常压力。当呼吸阀正常工作满足不了因意外原因造成储罐急剧超压时，呼吸人孔的泄压盖自动顶开，进行紧急泄压，使罐内压力保持正常；当罐内压力急剧减压或超真空时，吸入阀便开启急剧吸入大气，维护罐内正常压力；当吸入大气带有火花、火焰时，阻火层起到“器壁效应”的作用来阻止火焰的通过，以保护储罐的安全。

紧急泄压人孔介绍：
阻火紧急放空人孔是安装在石油、化工等物料储罐上的安全应急通风装置，通常与阻火呼吸阀配套使用，既能避免因意外原因造成罐内急剧超压或真空时，损坏储罐而发生的事故；又能起到安全阻火作用。
是目前国内保护储罐安全的理想装置。 产品采用全天候密封结构，以配重来调节吸入阀瓣和泄压盖的开闭，以不锈钢波纹带为阻火层，来阻止火焰的通过，并设双抽屉口，为清洗更换阻火层提供了方便，缩短了时间。总之，该产品具有定压排放、定压吸入、工闭灵活、安全阻火、结构紧凑、密封性能好、安全可靠等优点。

Emergency relief manhole working principle: in the normal operation of the fire-resistant breathing valve, breathing manhole, fire-resistant emergency relief manhole basically keep sealed state, storage tank at normal pressure. When the normal operation of the breathing valve can not satisfy the sudden overpressure of the tank caused by accident, the pressure relief cover of the breathing manhole automatically opens to carry out emergency pressure relief so as to keep the pressure in the tank normal When the pressure inside the tank is sharply reduced or the super vacuum occurs, the suction valve opens to sharply inhale the atmosphere to maintain the normal pressure inside the tank, the fire-retardant layer acts as a“Wall effect” to prevent the flame from passing through and protect the safety of the storage tank. Emergency Relief Manhole: fire-resistant emergency relief manhole is installed in the oil, chemical and other materials storage tanks on the safety of emergency ventilation device, usually used with fire-resistant breathing valve, it can not only avoid the accident caused by sudden overpressure or vacuum in the tank, but also play the role of fire safety. It is an ideal device for protecting the safety of storage tanks in China. The product adopts all-weather sealing structure, adjusts the opening and closing of the suction disc and pressure relief cover with counterweight, uses the stainless steel corrugated belt as the fire-proof layer to prevent the flame from passing through, and sets the double drawer mouth, the utility model provides convenience for cleaning and replacing the fire-retardant layer and shortens the time. In a word, the product has the advantages of constant pressure discharge, constant pressure inhalation, flexible working closure, fire-resistant safety, compact structure, good sealing performance, safety and reliability.

产品图片：不锈钢米勒制药用钛紧急泄压人孔生产厂家

公司简介：

安徽利勒洁净设备科技有限公司是国内专业生产制造洁净卫生级阀门管件，主要应用于食品机械行业、制药机械行业、乳制品行业、酿酒饮料行业以及精细化工等行业高精度卫生级流体设备的专业生产厂家，产品规格齐全；产品主要有：不锈钢米勒制药用钛紧急泄压人孔生产厂家，无菌隔膜阀，卡箍直通隔膜阀，三通隔膜阀，法兰隔膜阀，气动隔膜阀，U型隔膜阀，罐底隔膜阀 ；无菌球阀，卡箍直通球阀，螺纹球阀，焊接球阀，气动球阀，法兰球阀，电动球阀；卫生级蝶阀，焊接蝶阀，卡箍直通蝶阀，螺纹蝶阀，法兰蝶阀，气动蝶阀，电动蝶阀；不锈钢卫生泵，不锈钢卫生级离心泵，不锈钢卫生自吸泵，不锈钢酒精防爆泵，卫生奶泵，卫生饮料泵；止回阀，过滤器、呼吸器、换向阀、防混阀、安全阀；卫生级不锈钢管件，焊接弯头，快装弯头，不锈钢三通，快装三通，四通，真空弯头，大小头；罐顶组件系列，不锈钢储罐，发酵罐，不锈钢卫生级人孔，清洗球/器，视镜灯，排气阀等其它非标产品生产加工；我们竭诚为您服务.