紧急泄放阀说明书.pdf

紧急泄放阀 HXF-R 型 产 品 说 明 书 武 汉 谨 烨 石 化 设 备 有 限 公 司 WUNHAN JINYE PETROCHEMICAL EQUIPMENT CO., LTD. 地 址 Add:武 汉 市 玉 带 玉 街 御 景 名 苑 A 栋 3-1304 室 商务 Tel:86-27-83808100 83808200 商务 Fax:86-27-83801200 邮编 P.C:430030 网址： E-mail:jinye@ 紧急放空阀紧急放空阀 Emergency emptying valve 紧急泄放阀是安装在储罐顶上的安全应急通气装置，通常与阻火呼吸阀配套使用，既然避免因意外原因造成罐内急剧超压或真空时，损坏储罐而发生事故，又能起到安全防火作用，是保护储罐的安全装置，特别适用于贮存物料以氮气封顶的拱顶常压罐具有定压排放、定压吸入、开闭灵活、安全阻火、结构紧凑、密封性能好、安全可靠等优点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。

紧急泄放阀是安装在储罐顶上的安全应急通气装置，通常与阻火呼吸阀配套使用，既然避免因意外原因造成罐内急剧超压或真空时，损坏储罐而发生事故，又能起到安全防火作用，是保护储罐的安全装置，特别适用于贮存物料以氮气封顶的拱顶常压罐具有定压排放、定压吸入、开闭灵活、安全阻火、结构紧凑、密封性能好、安全可靠等优点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 Breathing Man hole and Breathing Manhole With Flame Arresting is a kind of emergent venting device for safety , which shall be installed on the top of the tank roof. It is usually used together with breather valve and flame arrester. It can not only avoid sudden extra-pressure or vacuum in tank causing storage tank, especially used for normal-pressure dome roof tanks with nitrogen-covered storage fuel. The products have advantages in exhaling and inhaling under fixed pressure, opening and closing by accidents but also arrest the flame safely. At present it has been applied very well in protecfreely, safe arresting flame, compact structure, well-performed sealing and safety reliability etc.The product uses the all-weather seal structure, adjusts the intake valve petal by the counterweight and releases the gland the make and break, take the stainless steel ripple belt as the fire resistance level, prevents the flame passing, and supposes the double drawer mouth, has provided conveniently for the clean replacement fire resistance level, reduced the time. 一、技术要求：一、技术要求：Specification requirement : 操作压力：操作压力：Operate the pressure: +1750Pa(+180mmH2O)~-392 Pa(-40 mmH2O) +5490Pa(+550mmH2O)~-392 Pa(-40 mmH2O) 使用范围：特别适用于贮存物料以氧气封顶的拱顶压罐使用范围：特别适用于贮存物料以氧气封顶的拱顶压罐 Use scope: Is suitable specially in the storing material the arch which places an upper limit on by the oxygen presses the pot 阻火等级：阻火等级：BS5501：：IIA 级标准化级标准化 Fire resistance rank: BS5501:IIA level standardization 环境温度：环境温度：-30℃℃-+60℃。

℃ Environment temperature: -30 degrees Centigrade- +60 degrees Centigrade. 壳体材质：壳体材质：A3、、304、、304L、、316、、316L 等 Shell material: A3 , 304 , 304L , 316 , 316L ,etc.. 法兰标准：法兰标准：HG20592-97 PN1.0 （也可根据用户指定的标准生产） 也可根据用户指定的标准生产） Flange standard: HG20592-97 PN1.0 (can be produced according to the standard which users appoint). 二、工作原理：二、工作原理：Principle of work 在阻火器呼吸阀正常工作情况下，紧急泄放阀基本保持密封状态，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，阻火层起到在阻火器呼吸阀正常工作情况下，紧急泄放阀基本保持密封状态，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“器壁效应器壁效应”的作用来阻止火焰的通过，以保护储罐的安全的作用来阻止火焰的通过，以保护储罐的安全 In the fire barrier respiration valve normal work situation, the fire resistance breathes the human hole basic maintenance seal condition, the storage tank is in the full pressure. When when the respiration valve normal work could not satisfy the accidental reason created the storage tank sudden overpressure, breathes the human hole to release the gland automatically to go against, carried on the urgent decompression, caused the pot internal pressure maintenance to be normal; When pot internal pressure sudden reduced pressure or ultra vacuum, the intake valve then opens the sudden inspiration atmosphere, maintains in the pot the full pressure; When the inspiration atmosphere has the spark, the flame, the fire resistance level plays “the wall effect” the role prevents the flame passing, protects the storage tank the security. 三、制造和验收标准：三、制造和验收标准：SY7511-87 GB5908-86。

Make and confirm the standard: SY7511-87 GB5908-86. 四、紧急放空阀性能及特点：四、紧急放空阀性能及特点： Emergency emptying valve of the valve and characteristic 1、、 紧急泄放阀耐低温性能在空气相对湿度大于紧急泄放阀耐低温性能在空气相对湿度大于 70%，最低温度为，最低温度为-30℃时，经℃时，经 过过 24 小时的冷冻后，其吸入阀开启压力符合工作压力要求， （允许压差正负小时的冷冻后，其吸入阀开启压力符合工作压力要求， （允许压差正负 20pa） Hinder fire breathe valve able to bear low-temperature performance relative humidity greater than 70% in air , minimum temperature - when the 30 degrees Centigrade, after the refrigeration of 24 hours, its valve of a pressure of openings accord with the working pressure request, (allow to be pressing difference and is being defeated by 20pa). 2、、 紧急泄放阀的阀杆部件动作时，灵敏度高，动作完成后，保证密封。

紧急泄放阀的阀杆部件动作时，灵敏度高，动作完成后，保证密封 While hindering a part movement of valve of breathing valve of fire, the sensitivity is high, after movements are finished, guarantee to seal. 3、、 紧急泄放阀内留有足够的空间，保证储罐的通气量紧急泄放阀内留有足够的空间，保证储罐的通气量 Hinder fire breathe valve valve leave enough space , guarantee to store the keeping in touch with amount of pot. 4、当紧急泄放阀达到了工作压力以后：泄压阀立即开启，保证储罐正常的通气要求当紧急泄放阀达到了工作压力以后：泄压阀立即开启，保证储罐正常的通气要求 After have hindered the fire and breathed the。