The invention provides a pressure regulating valve set for the silent type blast furnace ironmaking process dry dedusting system, which comprises a valve body bracket is installed on the bracket, wherein, the valve body is fixed with a baffle, the baffle plate evenly along the circumferential direction is provided with at least two flow tube, each flow inside of the sleeve on the ground with a guide cone, a sealing surface fitting between the sleeve and the guiding cone, each guide cone is connected with a drive mechanism. The invention changes the flow area of the air flow by moving the diversion cone up and down to achieve the purpose of regulating voltage. Because the flow direction of the air flow is not changed during the movement of the flow guiding cone, the phenomenon of panting and turbulence is effectively prevented, and the noise is avoided from the source so as to achieve the purpose of large amplitude noise reduction. At the same time, because the noise of the valve group body is low, the noise reduction device is not necessary to be used in the actual use process, the investment cost is reduced by 70%, and the occupation area is reduced by 90%, and the social and economic benefits are obvious.
【技术实现步骤摘要】
本专利技术涉及一种调压阀组，尤其是一种用于高炉炼铁工艺干法除尘系统中的 静音型调压阀组。
技术介绍
调压阀组是高炉炼铁必不可少的装置，既要控制高炉炉顶的压力维持稳定又 要确保净煤气总管压力为设定值，才能保证炼铁生产的正常运行。随着国内炼铁 除尘技术由湿法除尘改为干法除尘，调压阀组的噪音已成为一大公害，经测量， 调压阀组出口侧噪音已达到125分贝左右，大大超过了国家环保部门规定的85 分贝的设计规范。如图1所示，通常调压阀组由四个调节蝶阀组成。每个调节蝶阀包括阀体l 和转动安装在阀体1内的阀板2。其工作原理为通过开闭阀板2的大小来控制煤气 的流量。而当燃气流经过阀板2时，必然被强行改变原气流的流动方向，这样通 过蝶阀的气流就会形成紊流，从而产生强噪音。所以，使用该传统的蝶式阀门作 为调压装置，强噪音是无法避免的。针对上述纯干法高炉的噪音问题，本专利技术人专利技术的第一代消音型调压阀组 (专利号200520022707.9)通过在河北迁钢的使用检测，已完全能够满足国家 环保部门的规范。本人专利技术的第一代消音型调压阀组是从外围入手，通过吸收噪 音和隔断声波的传播路径...
【技术保护点】
一种静音型调压阀组，包括支架（３）、安装在支架（３）上的阀体（４），其特征在于所述阀体（４）内固定有挡板（１２），在挡板（１２）上沿圆周方向均匀设有至少两个过流套管（８），每个过流套管（８）内上下活动地设有一个导流锥（９），过流套管（８）与导流锥（９）之间具有相互配合的密封面，每个导流锥（９）上连接有一个驱动机构。
【技术特征摘要】
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。