CN2455668Y - 耐磨弯头 - Google Patents

耐磨弯头 Download PDF

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Publication number
CN2455668Y
CN2455668Y CN 00267332 CN00267332U CN2455668Y CN 2455668 Y CN2455668 Y CN 2455668Y CN 00267332 CN00267332 CN 00267332 CN 00267332 U CN00267332 U CN 00267332U CN 2455668 Y CN2455668 Y CN 2455668Y
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powder
bend
powder particles
pothole
avoided
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宋桂良
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Abstract

本实用新型公开了一种耐磨弯头,其是在弯头转弯处进料方向上延伸出一空心球瘤,粉煤灰等颗粒料进入弯头尾部坑洼处填充坑洼后,在坑洼处从上部往底部很缓慢地转换,让后进来的粉粒往出口运动,这时只产生粉粒与粉粒间的摩擦,而避免了粉粒与管壁的撞击。另外,粉粒在变坑洼处改变方向后直线出来,避免了粉粒与管口壁的撞击,也起到防止粉体乱流现象。

Description

耐磨弯头
本实用新型涉及一种空气输送颗粒管道，特别是输送粉煤灰管道的弯头。
管道输送颗粒物料其弯道的耐磨性是重要的指标，由于颗粒料在管道内压力大撞击管壁常导致弯头破裂。为此，现有设计有以下三个方案：一、短弯头(如图1)：当粉粒水平过弯管时，其运动轨迹由水平变为弧形，为提供粉粒运动的向心力，粒体必须与管壁发生磨擦与挤压，对管壁产生摩损，另外万一粒体流速减慢就会引起堵塞，为防止堵塞，还必须增加粉粒前进的速度措施。二、T字管(如图2)：这种T字管暗侧一方停留一些输送物，在粉粒拐弯处产生的是粉粒间的摩擦，但粉粒经过弯道后会反弹在T字管的末端或管口，引起碰撞。在拐弯处滞留体会增加，管道减小，速度减慢，因此也要通过增加流速的措施来解决。三、长弯头(如图3)：把短弯头增加长度并同时减少弯曲就变成长弯头，长弯头总体来说比短弯头的摩擦与碰撞更小，这是唯一可长年使用的管子，但在粉粒与管壁发生碰撞造乱流时，粉粒在管内的流速要减小。另外在熔点低的材料中，部分粒子因磨擦而产生热被熔解，有时发生拉线现象。
本实用新型的目的是设计可长期使用的耐磨弯头。
本实用新型技术方案是在弯头转弯处进料方向上延伸出一空心球瘤，粉煤灰等颗粒料进入弯头尾部球瘤坑洼处填充坑洼后，在坑洼处从上部往底部很缓慢地转换，让后进来的粉粒往出口运动，这时只产生粉粒与粉粒间的磨擦，而避免了粉粒与管壁的撞击。另外，粉粒在变坑洼处改变方向后直线出来，避免了粉粒与管口壁的撞击，也起到防止粉体乱流现象。
图1为短弯头结构示意图；
图2为T字弯头结构示意图；
图3为长弯头结构示意图；
图4为本实用新型结构示意图。
图5为本实用新型结构原理图。
实施例如图所示：弯头(1)在进料方向上延伸出一空心球瘤(2)，其作用是填充颗粒物，让后进入管内的颗粒物与之撞击避免与管壁的撞击，其另一作用是改变撞击的颗粒物方向。

Claims (1)

1、一种耐磨弯头，其特征是在于在弯头转弯处进料方向中延伸一空心球瘤。
CN 00267332 2000-12-30 2000-12-30 耐磨弯头 Expired - Fee Related CN2455668Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00267332 CN2455668Y (zh) 2000-12-30 2000-12-30 耐磨弯头

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00267332 CN2455668Y (zh) 2000-12-30 2000-12-30 耐磨弯头

Publications (1)

Publication Number Publication Date
CN2455668Y true CN2455668Y (zh) 2001-10-24

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CN 00267332 Expired - Fee Related CN2455668Y (zh) 2000-12-30 2000-12-30 耐磨弯头

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CN (1) CN2455668Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102301174A (zh) * 2009-01-28 2011-12-28 斯科特·多伊格 耐磨损浆料管配件

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102301174A (zh) * 2009-01-28 2011-12-28 斯科特·多伊格 耐磨损浆料管配件
US9493314B2 (en) 2009-01-28 2016-11-15 Scott Doig Wear resistant slurry pipe fitting

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