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当前位置: 首页-新闻中心 > 定量风阀通风空调中的应用

定量风阀通风空调中的应用

发布时间:2017/12/25

  定风量阀,是一种机械式自力装置,适用于需要定风量的通风空调系统中。定风量阀风量控制不需要外加动力,它依靠风管内气流力来定位控制阀门的位置,从而在整个压力差范围内将气流保持在预先设定的流量上。
  The fixed air valve is a mechanical self force device, which is suitable for the ventilation and air conditioning system which needs the fixed air volume. The air volume control of the constant air volume valve does not need additional power. It relies on the air force in the duct to locate the position of the valve, so that the airflow is maintained at the preset flow in the range of the whole pressure difference.
  在新风系统中的应用
  Application in the new wind system
  目前,在国内,风机盘管加新风系统的空调方式还是较普遍,尤其是宾馆客房部分,大部分写字楼、办公楼都采用这种方式。通常做法是每层设新风机组,走道敷设新风干管,几十根支管分别从总管上接入各房间。
  At present, the air conditioning system of fan coil unit plus fresh air system is quite common in China, especially in the guest rooms section. Most office buildings and office buildings adopt this way. The usual practice is to set up a new wind unit in each layer, and a new wind pipe is laid on the aisle, and dozens of branches are connected to each room separately from the general pipe.
  在排风系统中的应用
  Application in exhaust system
  一个好的空调系统设计,它的排风系统必须很合理,而这一点往往得不到重视。在民用建筑特别是在高层建筑里,围护结构的气密性很好,只需较少的风量就可以维护房间的正压值。大约新风量的85~90%必须通过有组织的排风排出室外,这样才能保证送风、排风的风量平衡,否则再多的新风量也无法送进房间。在民用建筑里,排风一般通过卫生间、开水间等辅助用房排出室外。
  A good air conditioning system design, its exhaust system must be very reasonable, and this is often not paid attention. In civil buildings, especially in high-rise buildings, the tightness of the enclosure structure is very good, and the positive pressure of the room can be maintained only with less air volume. About 85 to 90% of the fresh air volume must be discharged through the organized exhaust, so as to ensure the air volume balance of the air supply and exhaust. Otherwise, no more fresh air volume can be delivered to the room. In civil buildings, the exhaust air is usually discharged through the auxiliary rooms such as toilet, open water room and other auxiliary rooms.
  在全空气系统中,由于受建筑条件的影响,各支管之间阻力肯定不均衡,一般采用三通调节阀或对开多叶调节阀来完成风量分配。为保证重要房间或主要支管上的风量不致于过大或过小,减少调试的盲目性,可适当加设定风量阀来取代三通调节阀或对开多叶调节阀。
  In the whole air system, due to the influence of building conditions, the resistance between the branches must be unbalanced. Generally, the three way regulating valve or the multi leaf regulating valve are used to complete the air volume distribution. In order to ensure that the air volume of the main room or main branch is not too large or too small, and reduce the blindness of the commissioning, we can set up the air volume valve to replace the three way regulating valve or the multi leaf regulating valve.
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