夹套保温（防爆阻火）

◎夹套保温（防爆阻火）呼吸阀   夹套呼吸阀、夹套保温呼吸阀、夹套保温阻火呼吸阀

Jacket insulation (explosion-proof fire) breathing valve

由于呼吸阀是固定在储罐顶上的通风装置，以保证罐内压力的正常状态，防止罐内超压或超真空，使储罐遭受损坏，也可以起到减少罐内液体挥发损耗的作用。

而储存化工品时，一些化工介质由于温度的关系，需要将罐体和呼吸阀进行保暖。特别是呼吸阀，因与大气直接相通，冷却快，如保暖措施不当，会在呼吸阀口腔处出现结晶或聚合，并会导致罐体被吸瘪或破裂（国内曾出现多次类似事故），特别是储存对二甲苯丙醋酸、聚氯乙烯等介质。

再如北方寒冷地区，由于低温时间长，既然是储存油品，但由于有水气关系，也会使呼吸阀的阀盘和密封线之间、阻火器波纹带夹缝中出现结冰。有的罐区虽然具备蒸气绊热，但效果不佳，迫使停止运作，影响正常生产，给国民经济带来损失

为了解决上述问题，我厂特研制了夹套呼吸阀和夹套阻火呼吸阀，填补了国内空白。产品在呼吸阀的本体外围配上夹套隔层，设定蒸气接口和冷凝水出口，调配适当温度，蒸气融入夹套层中，全方位为呼吸阀的阀腔和阻火器保暖。这样，即可解决了有特殊温度要求的化工品储存的运作安全，又可解决寒冷地区冬天油品储运可随时操作的后顾之忧。其经济效益和社会效益是显著的。

产品造型新颖科学，结构合理紧凑，类型规格齐全。双环隔层密封性能好，且易于检查而又有安全可靠的特点。特别适用于化工、化纤罐区和寒冷地区的油品储运罐上。

Due to the breathing valve is fixed to the top of the tank ventilation means, in order to ensure the normal state of the pressure inside the tank to prevent the tank overpressure or ultra-high vacuum, so that the tank has suffered damage, and also to reduce volatilization loss of liquid in the tank can play a role in.

And storage of chemicals, some chemical medium due to the temperature dependence, need to tanks and breathing valve warm. Special breathing valve, directly connected with the atmosphere, cooling fast, such as improper precautionary measures in the breathing valve Oral Department crystallization or polymerization, and will result in the tank being sucked deflated or broken (There have been several similar incidents) especially storage media xylene, propyl acetate, polyvinyl chloride.

Another example of the cold northern regions, due to the low temperature for a long time, since the oil is stored, but the moisture relationship also cause breathing valve disc and seal line between the corrugated flame arrester with cracks icing. Although some tank farm capable of hot vapor trip, but to little avail forced to stop working, affecting the normal production losses to the national economy

In order to solve the above problems, I developed a special jacket breathing valve and jacket Fire breathing valve to fill the gap. Products coupled with jacketed the breathing valve body peripheral compartment, set the vapor interface and the condensate outlet, the deployment of the appropriate temperature steam into the jacket layer, and a full range of warm breathing valve valve chamber and the flame arrester. In this way, you can solve the operational safety of the chemicals stored in special temperature

requirements, but also solve the cold winter oil storage and transportation can operate at any time to worry about. Its economic and social benefits are significant.

Novel scientific, reasonable and compact structure, type specifications. Bicyclic compartment sealing performance, and easy to check and have a safe and reliable. Especially suitable for oil storage and transportation tanks of chemicals, chemical fiber tank farm and cold regions.