The utility model provides a stamping throttle, which comprises a measuring tube and a stamping block fixed on the inner wall of the measuring tube; the stamping block is formed by bar processing; the stamping block is a solid core structure; the stamping block and the measuring tube are welded into a whole; the stamping angle at the top of the stamping block is more than 90 degrees; the stamping angle chamfering arc of the stamping block; the arc radius R is not less than 6 mm, and the stamping block and the inner wall of the measuring tube are sprayed. Tungsten carbide coating; tungsten carbide coating thickness is 0.2-0.3 mm, surface hardness is not less than HV1000; the distance between the top of the stamp and the inner wall of the tube is H, the inner diameter of the tube is d, and H: d = 0.3-0.5. The utility model sprays tungsten carbide coating on the inner wall of the tine block and the measuring tube, guarantees the hardness of the tine block, greatly enhances the fluid impact resistance and wear resistance of the tine throttle, and prolongs the service life of the instrument. The utility model has the advantages of simple structure and convenient use.
【技术实现步骤摘要】
一种锲形节流件
本技术涉及一种锲形节流件,属于锲形流量计
技术介绍
节流件是在充满管道的流体流经管道内的一种流装置,流束将在节流处形成局部收缩,从而使流速增加,静压力降低。在流体通过楔块时流态发生剧烈变化,对楔块及楔块顶部对应测量管内壁具有非常强烈的冲击、冲刷效应,测量含固体颗粒的流体时,如黑水、灰水、矿浆等,极易导致测量管内壁、楔块磨损严重,严重的导致测量管击穿、楔块严重变形,发生测量严重超差,甚至流体泄漏引发严重的安全事故。
技术实现思路
本技术的目的是提供一种长期、可靠、稳定、准确进行流量测量的,耐磨损的锲形节流件。为了实现上述目的,本技术采用的技术方案是:一种锲形节流件,包括测量管和固定设置在测量管内壁的锲块;所述锲块由棒料加工成形;所述锲块为锲形实芯结构;锲块与测量管焊接成一体;锲块顶端的锲形角≥90°;所述锲块的锲形角倒圆弧;所述圆弧半径R不小于6mm,锲块和测量管内壁喷涂碳化钨涂层;碳化钨涂层的厚度为0.2~0.3mm,表面硬度不小于HV1000;锲块顶部距离测量管内壁距离为H,测量管的内径为d,H:d=0.3~0.5。本技术技术方案的进一步改进在 ...
【技术保护点】
1.一种锲形节流件,其特征在于:包括测量管(3)和固定设置在测量管(3)内壁的锲块(1);所述锲块(1)由棒料加工成形;所述锲块(1)为锲形实芯结构;锲块(1)与测量管(3)焊接成一体;锲块(1)顶端的锲形角≥90°;所述锲块(1)的锲形角倒圆弧;所述圆弧半径R不小于6mm,锲块(1)和测量管(3)内壁喷涂碳化钨涂层(2);碳化钨涂层(2)的厚度为0.2~0.3mm,表面硬度不小于HV1000;锲块(1)顶部距离测量管(3)内壁距离为H,测量管(3)的内径为d,H:d=0.3~0.5。
【技术特征摘要】
1.一种锲形节流件,其特征在于:包括测量管(3)和固定设置在测量管(3)内壁的锲块(1);所述锲块(1)由棒料加工成形;所述锲块(1)为锲形实芯结构;锲块(1)与测量管(3)焊接成一体;锲块(1)顶端的锲形角≥90°;所述锲块(1)的锲形角倒圆弧;所述圆弧半径R不小于6mm,锲块(1)和测量管(3)内壁喷涂碳化钨涂层(2);碳化钨涂层(2)的厚度为0.2~0.3mm,表面硬度不小于HV1000;锲块(1)顶部距离测...
【专利技术属性】
技术研发人员:白青松,陈丽亚,
申请(专利权)人:承德菲时博特自动化设备有限公司,
类型:新型
国别省市:河北,13
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。