专注通风管道加工·排烟罩

排烟防火阀的存在就是火灾风险，防御火灾发火。一般安装在机械排烟系统的排烟管道上起隔烟阻火作用。一管通生产的防火阀是一种记忆熔合金的温度控制，利用重力作用和弹簧机构的作用关闭的阀门形式。新型产品中亦有利用记忆合金产生形变使阀门关闭的,它的作用是：当烟气温度达到280℃时，人已基本疏散完毕，排烟已无实际意义，而烟气中此时已带火，阀门自动关闭，以避免火势蔓延。那我们在运用排烟防火阀的过程中需要留意哪些事项呢?下面有小编来给大家简朴一下其相关知识点。

The existence of smoke and fire dampers is to eliminate the risk of fire and prevent the occurrence of fire. It is generally installed on the smoke exhaust duct of the mechanical smoke exhaust system to prevent smoke and fire. The fire damper produced by one pipe is a type of temperature control valve made of memory melting alloy, which is closed by the action of gravity and spring mechanism. There are also new products that use memory alloys to generate deformation and close valves. Its function is to: when the temperature of the flue gas reaches 280 ℃, people have basically evacuated, and smoke exhaust has no practical significance. At this time, there is already a fire in the flue gas, and the valve automatically closes to avoid the spread of the fire. What precautions should we pay attention to when using smoke and fire dampers? Below, the editor will briefly explain the relevant knowledge points.

当排烟体系兼作透风空调体系时，不只需考虑透风时空气调度要求，还要考虑发生火灾时能灵敏排烟防火的要求，除此之外，排烟防火阀还合用于透风、空调管道装在吊顶上，无法用人工手动复位的场合。圆防火阀，排烟防火阀合用于有防烟防火要求的透风空调体系的风管上，十分合用于设有卤代烷气体主动设备的重要建筑物，由于释放气体前要求封锁一切的阀门，救活完毕之后，又应该翻开阀门来进行透风和排气。

When the smoke exhaust system is also used as a ventilation air conditioning system, it is not only necessary to consider the air dispatch requirements during ventilation, but also to consider the requirements for sensitive smoke exhaust and fire prevention in the event of a fire. In addition, smoke exhaust and fire dampers are also suitable for ventilation and air conditioning pipelines installed on suspended ceilings, which cannot be manually reset. Circular fire dampers and smoke exhaust fire dampers are suitable for ventilation ducts in ventilation air conditioning systems with smoke and fire prevention requirements. They are particularly suitable for important buildings with halogenated hydrocarbon gas active equipment. Due to the requirement to block all valves before releasing gas, after the rescue is completed, the valve door should be opened for ventilation and exhaust.

排烟防火阀是主动化体系中的一个重要组成部门，它装于现场操控流路，因此它是堵截流路防止可燃性流体通向火境的重要设备。在着火情况下排烟防火阀是翻开还是封锁是很要害的。值得留意的是：由于排烟防火阀由操控室的调度器进行自控，并非人工操纵，因此排烟防火阀门的重要特征应该是：能饱尝调温而短期功课，或者是当千辛万苦封锁时应使泄露量较小。

Smoke exhaust and fire damper is an important component of the active system, which is installed on site to control the flow path. Therefore, it is an important equipment for blocking the flow path and preventing flammable fluids from entering the fire environment. It is crucial to open or close the smoke exhaust fire damper in case of fire. It is worth noting that due to the fact that the smoke exhaust fire damper is controlled by the dispatcher in the control room and not manually operated, the important feature of the smoke exhaust fire damper should be that it can fully experience temperature regulation and short-term work, or when it is difficult to block, the leakage should be minimized.

防火调节阀的标准，对调节阀填料函和其他密封部件进行调整，必要时应替代密封部件，坚持静、动密封点的密封性。对需光滑的部件添加光滑油。对气源或液压过滤系统进行排污和清洁功课。查看各联接点的联接情况，侵蚀情况，必要时应替代联接件。

The standard for fire control valves is to adjust the packing box and other sealing components of the control valve, and if necessary, replace the sealing components, adhering to the sealing performance of static and dynamic sealing points. Add lubricating oil to the parts that need to be smooth. Conduct pollution discharge and cleaning work on the air source or hydraulic filtration system. Check the connection and erosion of each connecting point, and replace the connecting parts if necessary.

防火、排烟阀门系列产品通用技术参数阀门框体和叶片选用镀锌钢板制成，无焊点，外表无需涂装风阀轴承材料为烧结青铜含油轴承，可耐300oC高温，无需保护阀体厚度尺度尺度L=200mm,也可根据客户需求生产各种特型尺度。

The general technical parameters of the fire and smoke exhaust valve series products are that the valve frame and blades are made of galvanized steel plate, without welding points, and do not require painting on the surface. The bearing material of the air valve is sintered bronze oil bearing, which can withstand high temperatures of 300oC and does not require protection. The thickness scale of the valve body is L=200mm, and various special sizes can also be produced according to customer needs.

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