平衡阀[BALANCE VALVE]

从调节基本原理上看，平衡阀实际上就是一种有开度指示的手动调节阀。在平衡阀的上游、下游端各装一个测压孔，用来测量流体通过阀门的压降。使用时，测得阀门压降和读出开度，即可算得通过阀门的流量。其作用相当于调节阀和等效孔板流量仪的组合，使各个支路的流量分配达到要求。当总循环泵变速运行时，各个支路的流量分配比例保持不变。

From the basic principles of regulation viewpoint balancing valve is actually an instruction manual for the regulation valves. In balancing valve upstream and downstream ends of the tube with a hole, used to measure the fluid through valves pressure reduction. Use, detected valves pressure reduction and read out the degrees, can be considered by the flow valves. Its role to regulating valves and flow-combination hole equivalent to the slip road to the flow distribution requirements. When the total cycle pump gear shift operation, the flow of the slip road ratio unchanged.

动态平衡阀的工作原理： 通过改变平衡阀的阀芯的过流面积来适应阀门前后的变化，从而达到控制流量的目的。动态平衡阀是一个局部阻力可以变化的节流元件.当平衡阀前后压差小于最小启动压差是弹簧未被压缩，流通面积最大。当平衡阀前后压差超越工作范围是，阀胆完全压缩弹簧，水流只从阀胆两边的圆孔流过，此时阀胆变成了固定的调节器，流量与压差成正比，随压差的增大而增大.平衡阀具有在一定的压力范围内限制空调末端设备的最大流量、自动恒定流量的特点，在大工型、复杂、空调采暖负荷不恒定的工程中，简化了系统调试过成，并缩短了调试时间。

balancing valve dynamics operating principles : through changes in the flow Disc balancing valve the area around the valves to adjust to the change, thus achieving the purpose of flow control. Is a dynamic balancing valve local resistance to change spending components. When balancing valve and differential pressures are smaller than the smallest start differential pressures were not compressed spring-loaded, the largest circulation area. When balancing valve and differential pressures beyond the scope of work is completely compressed spring-loaded valves guts, guts flow only from valves on both sides of the square shed, when valves guts into a fixed regulator, the flow and differential pressures in proportion with the increase and differential pressures increase. balancing valve have some great pressure within the air-conditioning equipment to limit the maximum flow, automatic constant flow characteristics, in the large-type, complex, air conditioning load is not constant heating works, a simplification of the system into debugging, and shorten the debugging time.