HH44X使用说明书-中英文.doc
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1、HH44X型微阻缓闭止回阀HH44X micro Slow Close Check Valve使 用 说 明 书Product manual一、用途与特性Usage and features本阀主要用于工业循环供排水、城市供排水、高层建筑与宾馆酒店的加压输水泵的出口处,用来截止水倒流和消除破坏性水锤,保障管网安全运行.在设计上充分考虑了使用环境的要求,达到无震动、无噪音,运行平稳,确保宾馆酒店、住宅的环境安静,并具有节电等功能.为了安装方便,有立式安装和卧式安装两种,以供选用.The valve is mainly used in industrial circulating water su
2、pply and drainage , urban water supply and drainage , high-rise buildings and hotels of pressurized wateroutlet of the pump , used to cut back water and the elimination of destructive water hammer , guarantee the safe operation of the pipe network . Designed to take full account of the environmental
3、 requirements , no vibration, no noise , smooth operation , ensure that hotels, residential quiet and has a power-saving functions. There are vertical installation and horizontal installation , for selection .1、 节能:由于阀板采用轻体结构橡胶与金属组合结构,有平衡锤,局部阻力小,开启度大.与旋启式止回阀相比,输送每千吨水可节电1525度.2、 限制、消除破坏性水锤:由于阀门关闭系统采用
4、后段关闭阻尼机构,用延缓关闭的方式使局部倒流的水向系统内泄流,阀板遵循先速闭后缓闭,从而大大降低停泵倒流时的水压冲击力,消除破坏性水锤峰值的产生.3、 耐磨损、使用寿命长.同旋启式止回阀相比,提高使用寿命57倍4、 截流封闭性能好.逆止口与阀板之间为橡胶软密封.5、 运行平稳、无震动、噪音低.6、 维修费用低.与旋启式止回阀相比,降低维修费用80%.1.Energy saving : since the valve plate with a light body structure , there is a counterweight , the local resistanceis smal
5、l,big open -degree . Compared with swing check valves , conveyor per thousand tons of water can save 15 to 25 degrees.2 .Elimination of destructive water hammer : As the valve shut down the system uses the rear section closed damping mechanism , with the extension. Slow off the way so that the local
6、 backflow of water to follow after the first closing fast closing slow discharge into the system , the valve plate , thereby greatly reducing the impact pressure backflow when the pump stops , the elimination of destructive water hammer peak production.3 .Wear-resistant , long service life. Compared
7、 with swing check valves , to improve the life of 5 to 7 times4 .Closed good performance. Soft rubber seal between the port and the check valve plate .5 .Running smoothly, no vibration, low noise.6 .Low maintenance costs . Compared with swing check valves , lower maintenance costs by 80%.二、工作原理与调试方法
8、Works and debugging methods1、 本止回阀主要由阀体、阀盖、阀板组件、平衡锤、活塞组件与针型调节阀等组成.启动水泵时,依靠阀门进口介质的压力作用,压力水通过疏水导管进入活塞腔内,使活塞伸出并与流通介质共同推动阀板开启,同时使活塞伸出部分预置到位,平衡锤越过最高点,这样保证阀板的最大开度,使之不上下摆动.当水流停止时水泵停机由于阀板的自重使阀板自由下落关闭,但由于活塞处于伸出位置顶着阀板,使阀板不能全部关闭,还剩下约1/5左右的开启间隙,这样介质可以通过,减弱了水锤峰值压力,限制了破坏性水锤的发生.阀板压在活塞端部,活塞腔内的水阻碍了活塞的快速回伸,阻止阀板的关闭,这时
9、阀板在介质的背向压力作用下,推动活塞向后滑移,在活塞的推动下,活塞里介质通过调节阀又回到了系统中,活塞也缓慢回到原来位置,阀板最终完全关闭.1.the check valve consists of valve body, valve cover, valve plate assembly, the counterweight, the piston assembly and the needle valve and other components.When start the pump, relying on imports of medium pressure valves, press
10、ure water into the piston chamber through hydrophobic catheter inside, the piston extends with the flow of the medium to jointly promote the valve plate open, while the piston out part preset position, the counterweight over the highest point, so to ensure maximum opening of the valve plate, so as n
11、ot to swing up and down.When the water stops since the valve plate of the weight of the valve plate free-fall off, but since the piston in the extended position against the valve plate, the valve plate is not fully closed, leaving about 1/5 or so of open space This medium can be, and has reduced wat
12、er hammer peak pressure, limiting the destructive water hammer occurs.The valve plate against the piston end, piston cavity water hinders rapid piston back stretch, stop valve plate closed, then the valve plate at medium back pressure, push the piston back slip, the piston driven by the piston in th
13、e media through the valve back to the system, the piston is also slowly return to its original position, the valve plate eventually completely closed.2、 阀板缓闭开度的调整slow closing valve plate to adjust the degree of opening活塞伸出的长短,调节阀开度的大小,控制着活塞腔内的容量和阀板关闭的延缓时间.缓闭开度大,泄水时间长,水锤小;反之开度小,泄水时间短,水锤的形成就可能大,因此在结构上
14、缓闭开度调节器,用拉杆来控制活塞的伸出长度.开始调试时,可将活塞伸出总长拉杆退出长度即活塞总长的三分之二,然后停泵,检查水锤的大小和阀板能否关闭,水锤大,说明开度小;如果阀板关闭太慢,说明活塞伸出太长.经调试到理想开度后,即可用调节螺母固定拉杆,确定活塞伸出的长度.应该注意的是:活塞伸出的长短的调整与供水压力,输水距离,相对高差等工况有很大关系,它们之间是成正比例关系.另外,缓闭时间的长短,还可用针型调节阀的开度大小来控制,这个时间可控制在060秒,或者更长些.Extending the length of the piston to adjust the size of the valve
15、opening , the control piston chamber and the valve plate closing capacity extensionSlow time . Slow closing the opening of a large , long discharge time , water hammer small ; otherwise the opening is small, discharge time is short, it is possible to form a water hammer large , so the structure slow
16、ly closing the opening of the regulator , with the piston rod to control extended length .Start debugging , you can extend two-thirds of the total length of the piston , and then stop the pump, check the size of the water hammer and the valve plate can closed , water hammer , which meant that small
17、opening ; if valve plate closed too slowly , indicating piston out too long. After commissioning the ideal degree of opening , the lever can be fixed by adjusting the nut , determine the length of the piston out . It should be noted that: the length of the piston out of adjustment and water pressure
18、 , water distance , relative elevation and other conditions have a great relationship , it is proportional to the relationship between them. In addition, the slow closing length of time, but also with a needle valve to control the size of the opening degree , this time can be controlled from 0 to 60
19、 seconds or longer.三、 主要性能参数:Main technical parameter1、 阀门的法兰尺寸、结构长度符合GB/T9113,GB/T17241.6、GB/T12221标准.the valve flange size , length of the structure in line with GB / T9113, GB / T17241.6, GB / T12221 standards.2、 公称压力、工作压力、试验压力符合/T9092-1999标准.nominal pressure, working pressure , test pressure in
20、line with / T9092-1999 standard公称压力rated pressure工作压力working pressureMpa强度试验压力strength test pressureMpa密封试验压力sealing test pressureMpaPN101.01.51.1PN161.62.41.8PN252.53.82.83、 工作介质与温度working media and temp.1、工作介质:净水、源水、污水、石油与其他弱酸碱性液体介质;Working medium: water, the source of water , sewage, oil and othe
21、r weakly alkaline liquid medium2、工作温度:080.Operating temperature : 0 80 4、 缓闭止回性能:当供水压力大于0.19Mpa时,缓闭装置的活塞杆能伸长到予定的工作位置;当停泵介质回流时,阀门阀板可推动活塞在060秒时间内滑移回到原位,封闭管道无泄漏,缓闭时间可调.并且水泵倒转速度不超过水泵额定转速的0.6倍.slow closed -back performance : When the water pressure is greater than 0.19Mpa, slow closing means of the pisto
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